The invention relates to flue-dust processing equipment. According to the equipment, dust is introduced into a stirring barrel loaded with water through a hollow rotation vertical pipe, and dust introduced into water is filtered and dissolved in water through stirring and cutting of a rotation blade, a fixed porous filter balance plate and a rotation cutting sheet, and thus absorption purification effect is reached. The equipment is simple and reasonable in structure design, material-saving, low in cost, convenient to use and efficient for dedusting, and for a production manufacturer, production cost is reduced, energy is saved and environment is protected. The equipment is suitable for purification processing of various metal and nonmetal dust, and can be popularized and used in a large scale.