The utility model belongs to the technical field of
biomass gasifiers, and particularly relates to a
biomass gasifier with a spiral feeding function, which comprises a producer and a
discharge pipe at the lower end of the producer, and further comprises a storage hopper and a feeding
pipe at the lower end of the storage hopper, and the feeding
pipe is communicated with the producer; a sealing cover and a motor on the side face of the sealing cover are detachably installed at the end, away from the generation furnace, of the feeding pipe, a rotating shaft of the motor extends into the feeding pipe, a
spiral blade is fixedly connected to the outer side of the rotating shaft, and an outer protruding part is detachably connected to the outer side of the
spiral blade; an inclined scraping piece extends from the side, close to the generating furnace, of the outer protruding part, a spherical protruding block is fixedly connected to the side, away from the generating furnace, of the outer protruding part, and the scraping piece and the spherical protruding block are both attached to the inner wall of the feeding pipe. In the spiral feeding process, the inner wall of the feeding pipe can be cleaned in real time, the situation that part of raw materials adhere to the inner wall and cake to
cause blockage can be prevented, the cleaning mechanism can be conveniently disassembled in the long-term use period, and cleaning, overhauling, maintaining and using are convenient.