NOVELTY - A biomass gasification device comprises material charger, fan, gas generator, fuel compaction device, cooling water circulating system, filter system, dreg outlet, smoke exhaust valve, wash water valve, transport pipe network of user terminal, gas buffer pot, air compressor, one way valve and pressure container. The cooling water circulating is on circumference of hearth. The water inlet and water outlet of cooling water circulating system are respectively at upper part and lower part of cylinder wall of gas generator. The fan is connected with bottom of gas generator.    USE - A biomass gasification device.    ADVANTAGE - The device integrates generation, filtration, storage and transport of fuel; obtains cleaner fuel with higher purity and without pollution; and ensures continuous fuel utilization. The produced inflammable gas needs no addition of any additive, has low cost and is environment-friendly.    DETAILED DESCRIPTION - The biomass gasification device comprises material charger, fan, gas generator, fuel compaction device, cooling water circulating system, filter system, dreg outlet, smoke exhaust valve, wash water valve, transport pipe network of user terminal, gas buffer pot, air compressor, one way valve and pressure container. The cooling water circulating is on circumference of hearth. The water inlet and water outlet of cooling water circulating system are respectively at upper part and lower part of cylinder wall of gas generator. The fan is connected with bottom of gas generator. The transport pipe network from gas generator, gas buffer pot, filter system, air compressor and pressure container to the user terminal forms single-directional loop for transporting gas. The place between air compressor and pressure container is equipped with one way valve. The bottoms of gas buffer, filter system and pressure container are all provided with wash water valves. The lower part of gas generator is provided with dreg discharging orifice. The outlet of gas buffer is connected with 3-way pipe, where one end of is connected with smoke exhaust valve, and other end is connected with inlet at lower part of filter system. The gas generator is equipped with safety valve. The gas buffer pot is equipped with safety valve and thermometer. The air compressor is equipped with pressure meter. The pressure container is equipped with safety valve and pressure meter. The filter medium layer of dry filter comprises wood carbon layer, grain-like plant filter medium layer and filter cotton layers in sequence from top down. The inlet and outlet of dry filter are provided with 120-mesh steel net.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram illustrating a biomass gasification device.