Heat exchange device of transformer prefabricated cabin

The utility model provides a transformer prefabricated cabin heat exchange device which comprises a cabin body of a transformer prefabricated cabin, the cabin body comprises a cabin body top, a cabin body outer wall and a cabin body base, the cabin body outer wall comprises an outer wall upper part and an outer wall lower part, the outer wall upper part comprises a hollow wall body, and the hollow wall body is provided with a hollow cavity. The lower part of the outer wall comprises an air inlet wall body; the cabin body is used for placing the transformer; and the multiple centrifugal fans are arranged at the top of the cabin body according to a preset arrangement rule and used for conducting heat exchange on the transformer prefabricated cabin. According to the transformer prefabricated cabin, the centrifugal fan is arranged at the top of the transformer prefabricated cabin for ventilation and heat exchange, the outer wall of the cabin body is divided into the upper part and the lower part for natural heat