Filter cloth rotating device

The utility model discloses a filter cloth rotating device, which belongs to the technical field of winding devices and comprises a liquid box, a first filter cloth winding shaft and a second filter cloth winding shaft, the first filter cloth winding shaft and the second filter cloth winding shaft are respectively arranged at two ends of the liquid box, movable filter cloth is arranged above the liquid box, and the filter cloth winding shaft is arranged on the liquid box. The two ends of the filter cloth are rotationally wound on the first filter cloth winding shaft and the second filter cloth winding shaft respectively, the liquid box is filled with copper-containing emulsion, the first filter cloth winding shaft is connected with the output end of the speed reducer, the input end of the speed reducer is connected with the output end of the variable frequency motor, and a trigger device for triggering the variable frequency motor to be powered on and powered off is arranged in the liquid box; the filter clot