Flue gas purifying device and flue gas purifying method for trapping inhalable particulate

The invention discloses a flue gas purifying device and flue gas purifying method for trapping inhalable particulates, relates to flue gas purifying treatment and provides a flue gas purifying deviceand flue gas purifying method which can efficiently trap and desulfurate the inhalable particulates and is used for trapping the absorbable particulate matters. The device is provided with a reactioncondensing and merging tower, an absorbent bin, a water spraying device, a bag-type dust remover and a material circulating chute. Flue gas enters in the reaction condensing and merging tower, is mixed with an absorbent and desulfurating dust in a mixing area; flue gas which is subject to the desulfurating reaction enters in the reaction condensing area via a Venturi accelerating area; water is sprayed into a pipe expanding section of the Venturi accelerating area by the water spraying device; thick particulates and inhalable particulates are condensed and merged in the reaction condensing andmerging area; meanwhile, t