River purification device with function of removing floating objects on water surface for water conservancy project

The utility model belongs to the field of water conservancy projects, particularly relates to a river channel purification device with a water surface floating object removing function for a water conservancy project, and aims at solving the problems that an existing filter plate is inconvenient to disassemble and assemble and is inconvenient to clean and maintain, the following scheme is provided: the river channel purification device comprises a dam body, and the top of the dam body is fixedly connected with two supporting plates; the tops of the two supporting plates are fixedly connected with the same top base, the top of the top base is fixedly connected with a servo motor, an output shaft of the servo motor is fixedly connected with a servo shaft, a drainage hole with an opening in the top is formed in the front side of the dam body, moving grooves are formed in the sides, close to each other, of the two supporting plates, and moving plates are slidably installed in the moving grooves. And gates are fix