Method for improving heat efficiency of plasma gasification melting furnace for treating hazardous waste

The invention discloses a method for improving the heat efficiency of a plasma gasification melting furnace for treating hazardous waste, and belongs to the technical field of plasma treatment of hazardous waste. The method comprises the following steps: taking oxygen-enriched air as a gasifying agent, taking coke accounting for 5-20wt% of the total mass of the organic hazardous waste as one of auxiliary materials, and carrying out plasma gasification melting reaction on the organic hazardous waste, wherein the oxygen-enriched air has the furnace entering pressure of normal temperature to 750 DEG C, the oxygen content of 25-80vol.% and the furnace entering pressure of 5KPa-0.3 MPa, and the coke accounts for 5-20wt% of the total mass of the organic hazardous waste. According to the method, the problems of low gasification temperature and low molten slurry temperature can be solved, and the glass body formed at the reaction temperature is good in flowability, complete in glass phase and smooth in deslagging; th