Mixed gas generating stove

The utility model provides a mixed gas generating stove. In the utility model, the structures and the shapes of a stove skirt, a large dust knife and a small dust knife are reasonably improved; the phenomena that slag hangs in a hearth and is not evenly discharged are avoided when materials are moved down, the gas production (improved from primary 5500m+[3]/h to 6750-8100m+[3]/h) and the gas quality (the calorific value is increased from primary 1300-1400 kcal/m+[3] to 1480-1500 kcal/m+[3], the CO content is improved from primary 23-26% to 28-31%) are improved, the consumption is reduced (the carbon content of ash is reduced from primary 15-30% to 8-12%), and the lifespan of equipment is extended (the overhaul life is extended from 1 year to 3 year).