Anti-blocking and self-cleaning hydraulic valve

The invention relates to a hydraulic valve, in particular to an anti-blocking and self-cleaning hydraulic valve. The outer wall of the valve shell is communicated with a water inlet and a water outlet, a plug is arranged at the end of an inner cavity of a water outlet cavity, a valve body sliding in the water outlet cavity is arranged above the plug, an elastic part is connected between the bottom of the valve body and the plug, a sliding frame is arranged in a water inlet cavity in a sliding mode, a plurality of brushes are arranged on the outer wall of the sliding frame, and the sliding frame is fixedly connected with the valve body through a through pipe; a piston suction assembly is arranged in the elastic piece and used for blowing air into the valve body when the elastic piece is compressed, and the outer wall of the sliding frame communicates with a plurality of one-way valves used for discharging air in the valve body into the water inlet cavity. The brush reciprocates to brush away impurities attache