Feeding structure for biomass gasifier

The invention relates to the technical field of biomass gasification furnaces, and discloses a feeding structure for a biomass gasification furnace, the feeding structure comprises a furnace body, one side of the furnace body is provided with a material lifting machine, one side of the top of the furnace body is provided with an upper feeding pipe, and the upper feeding pipe is located below one end of the top of the material lifting machine; biomass fuel is lifted through a material lifting machine and fed into the furnace body through an upper feeding pipe, an auger rotating shaft is arranged in the furnace body, a spiral blade is fixedly installed on the auger rotating shaft, a discharging channel is formed in the top of the furnace body, an upper sealing plate and a lower sealing plate are arranged in the discharging channel, and the upper sealing plate and the lower sealing plate are arranged in the furnace body. The upper sealing plate and the lower sealing plate alternately block the discharging channe