Polishing device with high universality and long service life for evaporator

The invention discloses a polishing device with high universality and long service life for an evaporator. The polishing device comprises a first supporting piece, a second supporting piece fixed to the right side of the first supporting piece, a driving device connected to the first supporting piece and the second supporting piece, a polishing cover arranged on the left side of the driving device, a plurality of sets of polishing device bodies connected to the polishing cover, an adjusting device connected to the plurality of sets of polishing device bodies and the driving device, and a cleaning device penetrating through a first guide plate to be connected to the driving device. By arranging the polishing device bodies, the cleaning stability during cleaning of the inner wall of a copper pipe can be improved, and the service life of a cleaning brush can be prolonged; by arranging the polishing cover, the polishing device bodies can perform better cleaning during cleaning, and the use convenience is improved