Horizontal-type electrostatic dust collector

The utility model discloses a horizontal-type electrostatic dust collector which comprises an air flow distribution box (1), a first-stage dust collecting region (2), a second-stage dust collecting region (3), a third-stage dust collecting region (5), and a fourth-stage dust collecting region (6), wherein each dust collecting region adopts a charged dust collecting zone formed by a plurality of cathode lines and a plurality of anode plates. The horizontal-type electrostatic dust collector is characterized in that the cathode lines and the anode plates are distributed in the air flow direction; the polarity of the cathode lines of the first-stage dust collecting region (2) is the same as that of the cathode lines of the second-stage dust collecting region (3); the polarities of the cathode lines of the third-stage dust collecting region (5), the fourth-stage dust collecting region (6) and the first-stage dust collecting region (2) are different from one another; and the pole distances of the individual dust co