Cathode wire for electrostatic dust collection and electrostatic dust collection device

The utility model relates to a cathode wire for electrostatic dust collection and an electrostatic dust collection device. The electrostatic dust removal device comprises a smoke dust bin, a dust removal bin and a dust discharge bin which are arranged from top to bottom; an electrostatic dust removal module is arranged in the dust removal bin; the electrostatic dust collection module is composed of a plurality of electrostatic dust collection units arranged side by side; the electrostatic dust collection unit comprises a cathode wiring frame, an anode assembly and a cathode assembly arranged in the anode assembly. Anode assembly is of a cylindrical structure, the cathode assembly comprises a cathode strip and a plurality of discharge needles, the cathode strip is composed of a first cathode strip body and a second cathode strip body which are wound together, the discharge needles are evenly inserted between the first cathode strip body and the second cathode strip body in the length direction of the cathode s