Steel dam gate with silt removing function

The invention relates to the technical field of steel dam gates, in particular to a steel dam gate with a sediment removal function, which comprises a bottom plate positioned at the bottom of a river channel and mounting plates positioned on two sides of the river channel, a plurality of supporting plates are arranged between the two mounting plates at intervals, and a plurality of supporting plates are arranged on one side of each supporting plate. A gate is rotationally mounted on the side, close to the downstream of the river channel, of the supporting plate, and a driving assembly for controlling the gate to rotate is arranged on the supporting plate; a cleaning device for cleaning silt at the bottom of the river channel is arranged between the adjacent supporting plates and located on the side, close to the upstream of the river channel, of the gate. And on the basis that the gate function is achieved, silt near the gate can be scraped and cleaned, and normal use of the gate is prevented from being affec