High-efficiency desilting device and method for water conservancy construction

The invention discloses a high-efficiency desilting device for water conservancy construction and a method thereof, and belongs to the technical field of water conservancy construction. The first shell is detachably connected to the bottom plate; a first crown gear and a second crown gear are oppositely arranged, so that the rotating directions of the first crown gear and the second crown gear are opposite, at the moment, a second rotating rod and a hollow rotating cylinder also rotate in opposite directions, the second rotating rod rotates to drive a plurality of first stirring rods to rotate, and sludge caking positions are crushed through rotation of the first stirring rods; and then a plurality of second stirring rods are driven to rotate through rotation of the hollow rotary drum, the caking position of the sludge can be crushed through rotation of the second stirring rods, the sludge is difficult to attach to the surface of the sludge through reverse rotation of the first stirring rods and the second st