Water treatment cup

Provided is a water treatment cup. The water treatment cup comprises a water cup body and a filtering cavity formed in the water cup body; a filtering mechanism is arranged in the filtering cavity, awater injection cavity communicated with the filtering cavity is formed in the water cup body, and an upper sliding groove communicated with the water injection cavity is formed in the water cup body;an upper sealing rod is arranged in the upper sliding groove slidably, a communication hole runs through the upper sealing rod transversely, an upper spring is connected between the upper sealing rodand the top wall of the upper sliding groove, and a pressurizing block is arranged in the filtering cavity. The water treatment cup is convenient to carry; when drinking water in the water treatmentcup is used up, tap water can be added into the water treatment cup; the tap water is filtered in the water treatment cup and can be pressurized in the filtering process, so that the filtering efficiency is greatly improved, dri