The invention discloses a dust removing device for textile machinery. The dust removing device structurally comprises a dust suction pipeline, a connection rack, a machine body, rotating wheels, a drawer, a controller and a suction cup, wherein the bottom end of the dust suction pipeline is welded to the top end of the connection rack, the bottom end of the machine body is provided with the rotating wheels and the bottom end of the machine body and the rotating wheels are welded to each other, and the drawer is installed at the front end of the machine body in an embedded manner. According tothe dust removing device for the textile machinery, by means of improvement of part structures of equipment, a pipeline component is made to be capable of performing detection on the circulation condition of the pipeline, when the pipeline is blocked, a power mechanism can be controlled to perform reverse rotation, meanwhile, a liquid pumping mechanism is controlled to pump liquid to clean up thepipeline, reverse cleaning is performed on the blocked part of the pipeline, and the fact that batting accumulates together at bending positions of the pipeline to cause pipeline blockage is effectively prevented; and meanwhile, when the power mechanism rotates, a compressing mechanism can be driven to perform compressing on the collected batting, the gap between the batting is reduced to coagulate the batting together, and the batting is made to be not prone to floating in the air due to external factors when being stored.