Oil-immersed transformer with automatic cleaning function

The utility model discloses an oil-immersed transformer with an automatic cleaning function. The oil-immersed transformer comprises a shell and a lifting assembly. Cooling fins are symmetrically and uniformly arranged on the two sides of the shell, and a spray-washing assembly is arranged on the surface of the shell; the lifting assembly comprises guide rails, a lead screw, a sliding block and a first motor, the guide rails are symmetrically arranged on the two sides of the side face of the shell, the lead screw is rotationally connected into the guide rails, the sliding block is in threaded connection with the lead screw through a threaded hole in the middle, the sliding block is in sliding fit with the inner side face of the guide rails, and the first motor is arranged on the top faces of the guide rails; an output shaft of the first motor is fixedly connected with one end of the lead screw, a cleaning assembly and a rotating assembly are arranged on the lifting assembly, and the cleaning assembly comprises