The invention discloses a combined type runoff electric
precipitation air purifier. The combined type runoff electric
precipitation air purifier comprises a shell, wherein an
air purification channel is formed in the shell; a front discharging net is arranged in the
air purification channel in a direction of the section of the
air purification channel; the front discharging net is fixedly connected to the shell; a dust collection
electrode net plate is arranged behind the front discharging net in the air purification channel;
airflow is capable of flowing through the surface of the dust collection
electrode net plate; the dust collection
electrode net plate is manufactured by multiple
layers of wire nets which are stacked by porous foam
metal plates, a plurality of parallel corrugated plates, a plurality of parallel flat plates or honey comb plates, or a plurality of wire net surfaces; a
potential difference being 5000-60000V is generated between the front discharging net and the dust collection electrode net plate due to electric connection with a high-
voltage direct-current power supply. The invention aims to provide the combined type runoff electric
precipitation air purifier. The combined type runoff electric precipitation air purifier is capable of treating a large volume of air in
unit of time, low in wind resistance, prominent in effect of removing tiny dust within PM (Particulate Matter) being 2.5, extremely stable in dust collection performance, low in operation cost and long in service life.