Dust removal method for soft rock geological mine bottom plate

The invention relates to the technical field of mine dust removal, in particular to a soft rock geological mine bottom plate dust removal method. The dust removal method for the soft rock geological mine bottom plate comprises the following steps: starting to extract outside air, filtering and removing impurities on a filter plate, meanwhile, removing impurities in an air inlet pipeline in a vibrating manner, and removing impurities in a shell by a scraping plate; impurities are automatically removed at set time intervals. A cleaning piece abuts against the left side face of the filter plate under the action of an elastic telescopic rod, dust attached to the filter plate is cleaned, the situation that the dust attached to the filter plate affects the air extraction efficiency is avoided, and the distance between two cleaning blocks moves along with the radius change of the filter plate, so that the air extraction efficiency is improved. Dust generated at the punching position is extracted through the middle p