Multifunctional biomass gasification furnace

The utility model relates to the technical field of gasification furnaces, and provides a multifunctional biomass gasification furnace in order to solve the problems that in the prior art, ash accumulated on the furnace wall can cause slow temperature rise in a furnace body and influence the heating effect on the furnace body, the multifunctional biomass gasification furnace comprises a base, and two supporting plates are symmetrically and fixedly installed at one end of the upper surface of the base; a furnace body is fixedly mounted at the top ends of the two supporting plates, and a mounting groove is formed in the upper surface, away from the furnace body, of the base in a penetrating mode. The brush is driven by centrifugal force to be unfolded in the diameter direction of the rotating shaft, the brush is unfolded and attached to the inner wall of the furnace body, the sliding column drives the brush to reciprocate in the furnace body through the rotating shaft through the first belt wheel, and ash clean