Special water tank with filtering function for numerical control machine tool

The utility model discloses a special water tank with a filtering function for a numerical control machine tool, which comprises a water tank main body, a water inlet pipeline is arranged at the top of the water tank main body, a filtering guide pipe is arranged on the top wall of the water tank main body, and an inclined limiting ring is arranged on the inner wall of the filtering guide pipe. The top of the inclined limiting ring is provided with an inclined plane filtering mechanism, the inclined plane filtering mechanism is composed of an intercepting plate, an activated carbon adsorption layer and a filtering supporting plate, the activated carbon adsorption layer is installed above the filtering supporting plate, and the intercepting plate is installed above the activated carbon adsorption layer; and the bottom of the filtering supporting plate is attached to the tops of the two sets of inclined limiting rings. According to the utility model, the functional part for filtering water is arranged and is inc