Water cooling device for air heat exchanger

The utility model relates to a water cooling device for an air heat exchanger, which comprises a mounting plate, one end of the top of the mounting plate is fixedly connected with an equipment box through a plurality of supporting rods, and the other end of the top of the mounting plate is fixedly connected with a liquid storage box. Low-temperature water to be introduced into the air heat exchanger is firstly introduced into the guide pipe, the water pump is started, the water pump pumps out low-temperature cooling liquid in the liquid storage tank from the interior of the liquid storage tank, the low-temperature cooling liquid enters the cooling pipe through the third water pipe and the first water pipe, the low-temperature water in the guide pipe exchanges heat with the low-temperature cooling liquid, and the temperature of the low-temperature water is reduced; and then the low-temperature cooling liquid returns to the liquid storage tank again through the second water pipe, the circulation is repeated, an