Oil-immersed transformer cooling device

The invention relates to the technical field of transformers, and discloses an oil-immersed transformer cooling device. The oil-immersed transformer cooling device comprises an oil tank, two corrugated sheet sets and a cooling assembly, wherein a cooling liquid inlet and a cooling liquid outlet are formed in a tank body of the oil tank, the two corrugated sheet sets are arranged on the two opposite side walls of the oil tank respectively, each corrugated sheet set comprises a plurality of corrugated sheets, the corrugated sheets on the same side are arranged at intervals and in parallel and are communicated with an inner cavity of the oil tank, the cooling assembly comprises a plurality of cooling pipes, cooling liquid circulates in the cooling pipes, the multiple cooling pipes are arranged in the multiple corrugated sheets in a one-to-one correspondence mode, and the two ends of each cooling pipe communicate with a cooling liquid inlet and a cooling liquid outlet in oil correspondingly. The oil-immersed tran