Full-air-volume cooling system for coal face

The utility model discloses a full-air-volume cooling system for a coal face, and belongs to the technical field of mine heat damage treatment. The system comprises a water chilling unit, a chilled water pump, a cooling water pump, an air inlet air cooling device, an air return air cooling device, a working face, an air inlet roadway, a main air return roadway and corresponding pipelines. The water chilling unit is arranged under a mine, chilled water prepared by the water chilling unit is conveyed to the air inlet air cooling device at the air inlet roadway through a pipeline, and air entering the working face is cooled and dehumidified. Meanwhile, the return air cooling device is installed in a main return airway of a mine, and mine return air and cooling water are used for heat exchangeto discharge system condensation heat. Compared with the prior art, the thermal environment in a mine can be improved on the whole, meanwhile, the air inlet air cooling device and the air return aircooling device do not need