Anti-blocking device for valve pipeline

The utility model belongs to the technical field of valve pipelines, in particular to an anti-blocking device for a valve pipeline, which comprises an anti-blocking component, a control component and a connecting component, the anti-blocking component comprises a shell, flange plates are fixedly connected to the left end and the right end of the shell, the flange plate located on the right side is fixedly connected with a valve pipe, and the valve pipe is fixedly connected with the control component. The flange plate located on the left side is fixedly connected with a water pipe, one end of the interior of the shell is movably connected with a first filter screen through a connecting assembly, one end, located at one end of the first filter screen, of the shell is fixedly connected with a blow-off pipe, and one end of the blow-off pipe is movably connected with a knob cover; the other end of the interior of the shell is movably connected with a second filter screen through a connecting assembly. The anti-blo