Filter device

The utility model provides a filter device. This filter device includes the filter, and the filter includes: filter housing including the lateral wall, and is provided with matter entrance and material export on the lateral wall, the filter core, including having open -ended cone form filter screen, the direction of height of cone form filter screen is perpendicular with filter housing's directionof height, and the opening of cone form filter screen is close to material export setting. Cone form filter screen traverse is in filter housing, when filtering, the quick rheid direct impact that contains who gets into crosses filter screen surface, when the surface of straining down material adhesion filter screen, the quick fluid that gets into is directly cuted and is erodeed, erode adhesionmaterial under of the straining of crossing filter screen surface fall, because it described filter screen surface along the cone to get into fast to contain the solid -liquid body, part liquid formsthe vortex in the subrange,