The invention relates to an electrostatic dust collecting
plant for
air purification, comprising an insulating shell and an electrostatic field component fixed in the insulating shell, wherein the electrostatic field component comprises a pored dust collecting polar plate and a group of parallel
corona wires, the windward side of the pored dust collecting polar plate is provided with a group of parallel grooves corresponding to the
corona wires, the
corona wires and the pored dust collecting polar plate are parallel to each other and are respectively positioned in the grooves in the pored dust collecting polar plate, the air-out side of the pored dust collecting polar plate is provided with a foaming
metal mesh which is closely attached to, or is separated from, and is connected with the pored dust collecting polar plate by an
electrical conductor, the corona wires are connected with the positive or the negative
high tension electricity, and the pored dust collecting polar plate is grounded. The electrostatic dust collecting
plant has the advantages of large dust collecting area, simple structure, small volume, low air resistance and production cost and easy cleaning, and can be widely applied to the field of
air purification, in particular to an
air purifier, or a purifier at the air hole of a central air conditioner.