Jet type flue gas dust removal and purification system

The utility model relates to the technical field of flue gas purification, and provides a jet type flue gas dedusting and purifying system, which comprises a mechanical ventilation tower and a filter layer, the top of the mechanical ventilation tower is fixedly connected with two symmetrically arranged cross beams, the tops of the two cross beams are fixedly connected with a mounting rack together, the top of the mounting rack is provided with a motor, and the motor is fixedly connected with the filter layer. The output end of the motor is connected with a rotating shaft which is coaxially arranged through a coupler, through the arrangement of stirring blades and a tank wall cleaning device, dust and harmful substances in circulating water in the mechanical ventilation tower can be fully separated and settled through the stirring blades, water consumption can be reduced, and the waste water treatment cost and the environment burden can be reduced; and secondly, the tank wall cleaning device removes impurities