Dust removal device of feeder

The utility model discloses a dust removal device of a feeding machine, which relates to the technical field of palm fiber separation and comprises a separation box body, a high-pressure pulse tube is arranged above the separation box body, a spray head is communicated with the bottom of the high-pressure pulse tube close to the edge of one side, and a fixed disc is fixed on the outer surface of the spray head. A clamping sleeve is fixed at the bottom of the fixed disc, a butt-joint sleeve is arranged on the outer surface of the clamping sleeve, a butt-joint ring is in threaded connection between the inner walls of the butt-joint sleeve, and an annular supporting mesh enclosure is fixed at the bottom of the butt-joint ring. Then the butt joint ring and the clamping sleeve are mutually connected through the butt joint sleeve, so that the edge of the filter bag is clamped between the inner wall of the butt joint sleeve and the outer surface of the butt joint ring, and the filter bag and the annular supporting n