Device for collecting charcoal formed by biomass pyrolysis

The invention provides a device for collecting charcoal formed by biomass pyrolysis. The device comprises a fire grate rotationally arranged in a gasification furnace, a collecting bin, at least one first charcoal discharging knife and at least one second charcoal discharging knife, wherein the gasification furnace is provided with a bottom wall and a side wall, a carrying seat is arranged on thefire grate, a first gap is formed between the carrying seat and the side wall, and a second gap is formed between the carrying seat and the bottom wall; the collecting bin is fixed to the gasificationfurnace, a first charcoal outlet is formed in the side wall, a second charcoal outlet is formed in the bottom wall, the first charcoal discharging knife is fixed to the side wall and located above the carrying seat, and the second charcoal discharging knife is fixed to the carrying seat and located in the second gap; the first charcoal discharging knife acts on the charcoal piled on the carryingseat and discharges the par