Movable dredging device for deep water level of river channel

The utility model belongs to the technical field of desilting, and particularly relates to a river channel deep water level movable desilting device which comprises a desilting pipe, the bottom of the desilting pipe is communicated with a silt collecting cover, a crushing roller is rotatably arranged at an opening of the silt collecting cover, a driving motor is installed on the top of the desilting pipe, a mounting seat is arranged on one side of the desilting pipe, and a driving motor is installed on the mounting seat. A hydraulic telescopic rod is mounted on the lower surface of the mounting base, a fixing ring is connected to the end of a piston rod of the hydraulic telescopic rod and arranged on the surface of a desilting pipe in a sleeving mode, a discharging auger is rotatably arranged in an inner cavity of the desilting pipe, a silt discharging pipe is connected to the side wall of the top of the desilting pipe in a communicating mode, and a guide ring is welded to the end of the mounting base. The gu