The invention relates to a dust collection device of an electrostatic-type
air purifier. The dust collection device comprises an upper cover, a lower cover and clamping plates which are arranged between the upper cover and the lower cover and are provided with a plurality of slots, polarized electrodes are arranged in the dust collection device, a high-
voltage generator is arranged on the inner side of the upper cover, an
electric field module is correspondently arranged in each slot, each
electric field module comprises a plurality of
electric field positive pole pieces and electric field negative pole pieces, which are alternately arranged in parallel, each electric field positive
pole piece is connected to a positive conductive plate, each electric field negative
pole piece is connected to a negative conductive plate, and the distance between each electric field positive
pole piece and the adjacent electric field negative pole piece is 3.0mm to 4.0mm; a high-
voltage output end of the high-
voltage generator is connected to the positive conductive plate of each electric field module through a high-voltage plate connection terminal, a ground output end of the high-
voltage generator is connected to the negative conductive plate of each electric field module through a grounding plate connection terminal which is grounded; each polarized
electrode is an
ion generator. When the dust collection device is applied to the electrostatic-type
air purifier, a purification effect of no
ozone, no discharging
noise during dust collection, extremely low requirement on voltage and low requirement on insulation property can be achieved.