River channel dredging device

The utility model discloses a riverway desilting device which comprises a metal bottom plate and a riverway desilting box body, the riverway desilting box body is installed and connected to the upper end of the metal bottom plate, bottom moving wheels are arranged at the lower end of the metal bottom plate, and an automatic rotator is arranged at the front end of the riverway desilting box body. An extraction pump is arranged at the upper end of the river channel dredging box body, a filtering extraction pipe is arranged at the position, located on the river channel dredging box body, of the rear end of the extraction pump, a corrugated conveying pipe is arranged at the front end of the extraction pump, and a dredging cleaning cover is arranged at the position, located on an automatic rotator, of the front end of the corrugated conveying pipe; and an outer side handle rod is arranged on the portion, located on the metal bottom plate, of the outer side of the river channel desilting box body, and the draw-off