Metal polishing device

The utility model discloses a metal polishing device, which relates to the technical field of metal polishing, and comprises a mechanism box, the outer surface of the mechanism box is fixedly connected with a telescopic polisher, a cleaning mechanism is arranged in the mechanism box, the cleaning mechanism comprises a positive and negative rotation motor and a threaded pipe, a linkage mechanism is arranged in the mechanism box, and the linkage mechanism is connected with the telescopic polisher. The linkage mechanism comprises a sliding rod and a sliding pipe. Through the arrangement of the cleaning mechanism and the linkage mechanism, the rotating rod drives the cleaning roller to rotate while driving the cleaning roller to move on the operation table, so that the cleaning roller moves back and forth on the operation table for multiple times, metal scraps on the table top of the operation table are cleaned, and the uniform and thorough cleaning effect is achieved; and the situation that chippings generated i