The invention discloses a novel household biomass gasification combustion furnace which belongs to the field of biomass energy utilization. The novel household biomass gasification combustion furnace comprises an ash discharge outlet, an ash discharge control device, an outer casing of a furnace body, an inner casing of the furnace body, an air register, a furnace cover and a bottom ash bin. The combustion furnace is applicable to a variety of biomass fuels and can be widely applied in regions which are rich in biomass resources. Furthermore, the gasification and the combustion of biomass achieve the integration, the problem of tar formation is solved during the process, and flue gas after the combustion does not contain the tar, thereby not needing the treatment of the tar; a filter mesh is added in the furnace, thereby well filtering fly ash and greatly reducing the emissions of smoke, dust and other solid small particles. The high-efficient gasification combustion of the biomass and the high-efficient clean utilization are achieved through the adjustment. Therefore, the invention has the characteristics of high efficiency, low cost, simple and safe operation, etc.