Polishing sewage suction truck

The embodiment of the utility model provides a polishing suction-type sewer scavenger which comprises at least one section of suction-type sewer scavenger and at least one section of polishing wagon, the polishing wagon and the suction-type sewer scavenger are connected through a connecting piece, the suction-type sewer scavenger comprises a suction-type sewer scavenger frame, a dust collecting device and a fan assembly, and the fan assembly is installed on the upper portion of the suction-type sewer scavenger frame. The dust collecting device is mounted at the bottom of the suction-type sewer scavenger frame; the grinding wagon comprises a grinding wagon frame and a grinding device, and the grinding device is installed at the bottom of the grinding wagon frame. The polishing and sewage suction truck can form a polishing and sewage suction truck group, polishing and cleaning are carried out at the same time during operation, the whole truck can carry out polishing and suction full-automatic work, secondary cl