Abstract: Anhui Zhujixi coal mine is a typical high-temperature heat harmful mine.According to the advantage of rich low-temperature heat resource in the return air of mine,the use of heat pump technology to recover the heat in return air of mine solves the problem of winter heating and summer cooling,and cancels the traditional boiler heat source and central air conditioning cooling source,which achieves the goal of heating without coal-fired,energy-saving and emission-reduction.