Activated carbon filter convenient for replacing filter material

The utility model discloses an active carbon filter convenient to replace a filter material, which relates to the technical field of sewage treatment and comprises a filter body, a filter element is arranged in the filter body, and the top of the filter element is fixedly connected with a first sleeving plate. A movable plate moves on a guide rod in sliding connection, a spring is compressed, an inserting plate moves towards the interior of a fixed cavity, the inserting plate moves to be separated from an inserting groove, a fixed cover can be detached, a filter material in a filter element is replaced, the convenience of replacing the filter element is improved, and the situation that the filter element is not replaced due to the fact that the filter element is used for a too long time, and the filtering effect is affected is prevented; after the activated carbon filter material in the filter element is replaced, the replaced filter element is put into the filter body, and the inserting rod is inserted into