Power-free air heat exchange device special for mine ventilation

The utility model provides a power-free air heat exchange device special for mine ventilation. The power-free air heat exchange device comprises a heapstead arranged on the outer side of a mine mouth. A plurality of power-free heat exchangers are arranged on the side walls of the heapstead. Each power-free heat exchanger comprises a plurality of layers of coiler sets arranged vertically. An aluminum alloy heat preserving sealing frame covers the outer sides of the coiler sets. A filter screen is arranged on the outer side of the aluminum alloy heat preserving sealing frame. A louver is arranged on the inner side of the aluminum alloy heat preserving sealing frame. Each coiler set comprises a plurality of rows of red copper coilers. Hydrophilic aluminum foil fins are arranged on the surfaces of the outer sides of the red copper coilers. A water accumulating plate is arranged at the bottom of each coiler set and communicated with the outside through a condensing water pipe. The air heat exchange device does not depend on electric power for driving, noise is avoided, the energy-saving effect is obvious, the air heat exchange device has good economic benefits and social benefits, the air leakage rate is low, the amount of exchanged heat of the air is effectively increased, and the temperature reducing and heat preserving effects of the mine mouth are more obvious; moreover, as the filter screen is arranged, dust can be effectively isolated, and the situation that due to the fact that the fins are blocked, heat exchange is influenced can be prevented.