Tail gas purifying device based on high-voltage electrostatic dust collection principle and application of tail gas purifying device

The invention discloses a tail gas purifying device based on the high-voltage electrostatic dust collection principle and application of the tail gas purifying device. The tail gas purifying device comprises a housing, wherein one end of the housing is connected with a gas exhaust tube; the other end of the housing is equipped with a gas exhaust outlet; a catalyst type purifying layer, an elastic element, a plurality of pairs of electrode dust collecting mechanisms and a baffle block are sequentially arranged between the two ends of the housing; the electrode dust collecting mechanisms comprise a plurality of pairs of electrodes which are controlled by a boosting module to adsorb particles which pass through the catalyst type purifying layer; and the upper end of the baffle block is equipped with a motor for driving the baffle block to move, compress and release the elastic element, so that the baffle block moves to form an elastic vibrator, and therefore, particles on the electrode dust collecting mechanisms