Abstract: In order to solve the problems of the gobi sunlight greenhouse frozen disaster in winter,we designed a new hot-blast stove specially used in gobi sunlight greenhouse on the basis of existing research,which taked biomass pellets as fuel.The hot-blast stove mainly included double sleeve furnace with same shaft and distributed double circulation cooling system.This paper introduced the structures and principle of the combustor,heat exchange device,automatic igniter and automatic feeder.It had been found that the hot-blast stove operated stability,increased temperature effect obviously,prevented effectively the problem of frozen disaster in gobi greenhouse.It would be bring greater economic benefits for farmers.