Controllable cooling device of electric welding machine for constructional engineering

The utility model discloses a constructional engineering electric welding machine controllable cooling device which comprises a cooling box, a mounting plate is arranged on one side of the cooling box, a fixing block is fixedly installed on one side of the mounting plate, one side of the fixing block extends into the cooling box in a sliding mode, and an electric welding machine transformer is fixedly installed on the outer wall of one side of the fixing block. A cooling mechanism is arranged on the cooling box; the cooling mechanism comprises three annular air supply pipes, a plurality of air ejector pipes, an air guide pipe, three connecting pipes, an air conditioner, a short pipe and a ventilation assembly, and the three annular air supply pipes are all fixedly installed on the inner wall of the bottom of the cooling box. According to the controllable cooling device of the electric welding machine for constructional engineering, cold air can be uniformly sprayed to the peripheral surface of the transformer