NOVELTY - The biomass gasification system comprises a reactor and a first heat exchanger. The reactor is configured to gasify a dried biomass fuel in the presence of air to generate a producer gas. The first heat exchanger is configured to transfer heat from the producer gas to a biomass feedstock to produce the dried biomass fuel and a cooled producer gas and configured to transfer heat from the producer gas to a fluid to produce a heated fluid, and comprises a vessel configured to hold the biomass feedstock and to direct the heated fluid through the biomass feedstock.    USE - The biomass gasification system is useful in a power plant to convert biomass into a producer gas for generating heat/power or natural gas, where the producer gas includes combustible gases such as carbon monoxide, carbon dioxide, hydrogen, methane and nitrogen and the biomass includes alfalfa straw, bean straw, barley straw, coconut shell, coconut husks, corn cobs, corn fodder, cotton stalks, peach pits, peat, prune pits, rice hulls, safflower, sugarcane, walnut shell, what straw, wood blocks, wood chips, or any other suitable organic feed material.    ADVANTAGE - The biomass gasification system ensures efficient and economic conversion of the biomass into the producer gas with less energy consumption.    DETAILED DESCRIPTION - The biomass gasification system comprises a reactor, and a first heat exchanger. The reactor is configured to gasify a dried biomass fuel in the presence of air to generate a producer gas. The first heat exchanger is configured to transfer heat from the producer gas to a biomass feedstock to produce the dried biomass fuel and a cooled producer gas and configured to transfer heat from the producer gas to a fluid to produce a heated fluid, and comprises a vessel configured to hold the biomass feedstock and to direct the heated fluid through the biomass feedstock. The dried biomass comprises biomass having a moisture content of less than 5%. The first heat exchanger further comprises a jacketed heat exchanger that has a jacket portion configured to receive the producer gas and a vessel portion configured to hold the biomass feedstock. The jacket portion is disposed about the vessel portion. The biomass gasification system further comprises a cyclone (26) configured to separate particulates from the cooled producer gas to generate a reduced particulate producer gas. The first heat exchanger surrounds the cyclone. The biomass gasification system further comprises a combustion engine that is coupled to a generator and is configured to combust the cooled producer gas to drive the generator, and a scrubber system that is configured scrub the reduced particulate producer gas to scrub and to further cool the reduced particulate producer gas. The reactor comprises a first air inlet that is configured to direct a first air stream into a feed section of the reactor, and a second air inlet that is configured to direct a second heated air stream into a reaction zone of the reactor. The first heat exchanger is further configured to transfer heat from the producer gas to a third air stream to produce a cooled producer gas and the second heated air stream. The second air inlet comprises air nozzles disposed circumferentially around the reactor. The reactor further comprises a down draft reactor. The first air inlet comprises an opening located in a top of the reactor. The gasification system comprises a blower (70) configured to direct ambient air to the first heat exchanger as the third air stream, and a second heat exchanger configured to transfer heat from the cooled producer gas to the biomass feedstock to produce the dried biomass fuel and further cooled producer gas. The second heat exchanger comprises: a jacketed heat exchanger that has a jacket portion configured to receive the cooled producer gas and a vessel portion configured to hold the biomass feedstock; and a vessel jacketing the cyclone. The jacket portion is disposed about the vessel portion. The second heat exchanger is further configured to transfer heat from the cooled producer gas entering the cyclone to the third air stream flowing through the vessel. The vessel is disposed around the cyclone to create an interior volume between the cyclone and the vessel. The cyclone is configured to remove particulate from a gas flow of the producer gas through the cyclone and configured to transfer heat from the gas flow to a feedstock flow of the biomass fuel through the vessel to produce the cooled producer gas and the dried biomass fuel. The producer gas transfers heat to the biomass feedstock indirectly via heat exchanger tubing. The gasification system comprises a coil disposed in the interior volume to flow the producer gas through the interior volume before entering the cyclone.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a biomass gasification system.    Biomass gasifier (16)    Power generation system (20)    Heat exchanger (22)    Cyclone (26)    Blower. (70)