Device and method for efficiently removing condensable particulate matters in coal-fired power plant

The invention discloses a coal-fired power plant condensable particulate matter efficient removal device and method, an inlet of a dilution water pump is connected with a process water system, an inlet of an absorbent injection pump is connected with an absorbent solution supply system, and an injector is arranged at an outlet of an SCR (Selective Catalytic Reduction) reactor; the injection direction of the injector is the same as the flowing direction of flue gas at the outlet of the SCR reactor; an outlet of the dilution water pump is connected with a first pipeline, an outlet of the absorbent injection pump is connected with a second pipeline, outlets of the first pipeline and the second pipeline are connected, and a connecting point of the first pipeline and the second pipeline is connected with a liquid inlet of the injector through a third pipeline. The first pipeline and the second pipeline are respectively provided with a dilution water pressure control valve and an absorbent solution pressure control