Filter element washing machine

A filter element washing machine comprises an outer barrel fixedly arranged on a framework, a drain pipe is disposed at the bottom of the outer barrel, a rotary inner barrel is sleeved in the outer barrel, a water outlet hole is disposed on the wall of the rotary inner barrel, a counterweight is disposed at the bottom of the rotary inner barrel, the bottom of the rotary inner barrel is in transmission connection with an output shaft of a motor by a transmission shaft fixedly disposed, a positioning pulley matching with the rotary inner barrel is horizontally arranged at the upper edge of the inner wall of the outer barrel, a water feeding spray pipe is vertically disposed in the rotary inner barrel and is close to the inner wall of the rotary inner barrel, at least two water injection nozzles are vertically disposed on the water feeding spray pipe, and the upper end of the water feeding spray pipe is fixed by the aid of a fixing support disposed on the framework. By the aid of the filter element washing machi