Integrated equipment for pulverized coal size grading and conveying gas dust removal

The utility model discloses an integrated device for pulverized coal size grading and conveying gas dust removal, which comprises a cylinder, the bottom end of the cylinder is connected with the large-caliber end of a cone, the top end of the cylinder is provided with an end socket, and the end socket, the cylinder and the cone form a closed cavity; a cavity partition plate is arranged in the barrel, the bottom edge of the cavity partition plate is seamlessly connected with the inner surface of the cone, the outer edges of the two sides of the cavity partition plate are seamlessly connected with the inner surface of the barrel, and the outer edge of the top of the cavity partition plate is an intersecting line formed by intersecting the plane where the cavity partition plate is located and the horizontal plane and is not connected with any part of equipment; the small-caliber end of the cone is communicated with a fine powder discharging pipe opening, the top of the sealing head is communicated with an access