Dredging and deslagging device for water conservancy and hydropower engineering

The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a desilting and deslagging device for the water conservancy and hydropower engineering, the top end of a barrel is fixedly provided with a top cover through a plurality of connecting mechanisms, the top cover and the top cover are coaxially arranged, a pipe body is arranged in the center of the top cover in a penetrating mode, and the pipe body and the top cover are fixedly connected. A tray coaxial with the pipe body is placed in the pipe body and is in interference fit with the pipe body, a plurality of water permeable holes are formed in the surface of the pipe body below the top cover in the circumferential direction, a plurality of water permeable holes are also formed in the surface of the tray, a supporting column coaxial with the tray is fixedly installed at the bottom of the tray, and a through groove parallel to the supporting column is formed in the outer wall of the cylinder. A transv