Cathode discharge system with conductive coating fully covering cathode line

The utility model provides a cathode discharge system with conductive coating fully covering cathode lines, which is arranged in each electric field of an electric dust collector and comprises a plurality of first cathode lines and a plurality of second cathode lines, the first cathode lines and the second cathode lines are alternately arranged along the flue gas treatment direction, and the conductive coating is arranged between the first cathode lines and the second cathode lines. The first discharge barbs of the first cathode wire are coated with a conductive coating; the second cathode wires comprise a plurality of barbed wires and a plurality of dust collection type cathode wires, the plurality of second cathode wires at the tail end of each electric field of the electric dust remover in the flue gas treatment direction adopt the dust collection type cathode wires, and the dust collection type cathode wires adopt flat plates or perforated plates or steel wire meshes, so that the problem that the cathode