Antifreeze device of coal mine shaft

The invention discloses an antifreeze device of a coal mine shaft, relates to heating equipment used in the coal mine exploitation environment, and solves the problems that the shaft tends to icing and hidden safety hazards under severe heat waste and high fault rate of present equipment. The antifreeze device comprises a heat source pipe, a heat radiation annular pipe network and vent valves, theheat radiation annular pipe network is communicated with the heat source pipe, the heat radiation annular pipe network is composed of heat radiation annular pipes communicated with one another, the heat radiation annular pipes are arranged into an arc structure according to the shaft, and the heat radiation annular pipes are provided with the vent valves. A blower fan and condensed water collecting and discharging parts are removed from the present equipment, faults of the blower fan and a condenser are avoided, the structure of the antifreeze device matches that of the shaft, heat emitted inthe pipe network can be t