New footage from inside the Pike River mine appears to contradict official reports that the 2010 explosions caused a raging inferno that would have destroyed everything inside.

The footage, released to the families of the 29 men who died in the mining disaster, was aired on Newshub tonight.

It was shot in 2011 by a camera lowered down borehole 44, which was drilled after the explosions. The footage shows rubber hoses and wooden pallets that appear unburnt, next to the coalface of the mine.

The grainy footage also appears to show a pair of spectacles which may have belonged to Ben Rockhouse, one of the victims of the explosion who was working in that location.

His mother Sonya Rockhouse said the footage raises serious question about the Government's refusal to allow recovery specialists to go inside the mine.

"New Zealand has been told there's nothing but ashes and dust down there, they've been told that the drift can't be made safe to enter and investigate.

"That's just not true, my boy is down there and if pallets and paper are intact then so is his body."

UK mines rescue consultant Brian Robinson told Newshub the video showed there had been no fire in the area around borehole 44.

Coal methane expert David Creedy agreed, telling Newshub there was no fire damage and the mine appeared stable in that location.

Rockhouse said the Government has had the footage for six years.

"If it had been released to us and to New Zealand all those years ago we would have got into the drift by now and would have answers and some accountability."

She said Prime Minister Bill English had told the families cameras would be sent into the drift, but that promise was made five months ago. Since then there had only been "a couple of meetings and a vague suggestion it might happen by November".

"The experts say that the drift can be made safe for manned entry and that that's what's needed to recover evidence and any remains in there. I want to know why the Government won't listen to them and just do this."

She called for English to "do the right thing".

"He needs to let our experts work with mines rescue to enter the drift and find out what happened down there. We need answers. We deserve answers."