Kerosene engine waste gas plasma co-processing device and processing method

The invention provides a kerosene engine waste gas plasma co-processing device which comprises: an exhaust tower, a cooling tower, a plasma high-temperature electric dust remover, an SCR denitration reactor and an exhaust cylinder which are connected in sequence; a high-temperature waste gas source is communicated with the lower portion of the exhaust tower, the top of the exhaust tower is communicated with the top of the cooling tower, and an SNCR denitration sprayer is further arranged in the exhaust tower. The treatment method comprises the steps of: high-temperature waste gas with the temperature ranging from 700 DEG C to 900 DEG C enters an exhaust tower, a reducing agent is sprayed from an SNCR denitration sprayer, generated NH3 serves as a denitration reducing agent of a subsequentSCR denitration reactor, the temperature of flue gas is reduced to 280 DEG C to 400 DEG C after the flue gas passes through a cooling tower, then fine particles, unburned organic matter and CO are removed through a plasma ele