Water conservancy gate device with filtering function

The water conservancy gate device with the filtering function comprises a gate body, a rotary driving piece and a supporting piece, a second rotating shaft is movably arranged in the center of the interior of the gate body, first fixing pieces are welded to the outer portion of the second rotating shaft, a gate plate is welded between the first fixing pieces, and a second fixing piece is welded between the gate plate and the second rotating shaft. The position, close to the right side, of the interior of the gate body is filled with a filter plate, a handle is welded to one side of the exterior of the filter plate, an adjusting bolt is movably arranged at the position, close to the right side, of the exterior of the gate body, and the adjusting bolt penetrates through the gate body and is screwed into the filter plate; the filter plate is arranged in the gate body and matched with the gate body, so that when water passes through the filter plate, garbage in the water can be blocked on the outer side of the fi