Air plasma waste gas treatment device and method

The invention relates to an air plasma waste gas treatment device. The air plasma waste gas treatment device comprises a high-voltage alternating-current power supply, a housing, two first dielectric slabs installed on the housing and a grounding electrode arranged in the housing, wherein a waste gas inlet and a waste gas outlet are respectively formed in two ends of the housing, a high-voltage electrode is installed on each first dielectric slab and comprises a conductive tube and a capillary tube with one end extending into the conductive tube, an air inlet is formed in at least one end of the conductive tube, the conductive tube is connected with the high-voltage end of the high-voltage alternating-current power supply, the grounding electrode is connected with the grounding end of the high-voltage alternating-current power supply, and the other end of the capillary tube is communicated with the housing. The invention further relates to an air plasma waste gas treatment method. The air plasma waste gas treatment device and method have the advantages of efficient decomposition and low treatment power consumption, and a new thought is provided for industrial waste gas treatment.