The invention discloses a
biomass gasification power generation apparatus, which comprises a screw feeder, a
biomass gasification furnace, a
cyclone dust removing device, a filter, a condenser, a
hydrocyclone separator, a balance tank and a gas
storage tank, wherein the screw feeder, the
biomass gasification furnace, the
cyclone dust removing device, the filter, the condenser, the
hydrocyclone separator, the balance tank and the gas
storage tank are sequentially connected, the gas
storage tank is connected to a gas-fired boiler or a gas-fired generator set, or is directly connected to a
gas supply user, an automatic residue
discharge system is arranged below the
biomass gasification furnace, a dry ash collection device is arranged below the
cyclone dust removing device, a buffer membrane sheet is arranged inside the balance tank, a gas cavity is arranged above the buffer membrane sheet, a liquid cavity is arranged below the buffer membrane sheet, and the liquid inlet position of the liquid cavity is provided with a
liquid pressure adjustment device. According to the present invention, various components are sequentially connected, the structure is simple and reasonable, and the balance tank is additionally arranged in front of the gas storage tank to balance the
gas pressure in the gas storage tank, such that the gas input and output is ensured.