The utility model discloses a biomass fuel's burner aims at providing the biomass fuel's burner that can take out the interior coking piece of stove courage fast. It includes the stove outer covering, set up in the stove outer covering, the bottom has the fire bars device and the stove outer covering between the gapped stove courage of utensil, pass stove outer covering and stove courage and be close to the lighter of fire bars device up end, set up in stove courage lateral wall upper portion and pass the tobacco pipe of stove outer covering, set up in stove courage lateral wall upper portion with go out the relative conveyer of tobacco pipe to and set up on the stove outer covering with the communicating hair -dryer in clearance, the lower part of stove courage lateral wall sets up the air inlet door in intercommunication clearance and fire bars device below space, the upper end of stove courage is opened wide, and can dismantle on it to be connected with and seal its open top cap in upper end, be provided with on the top cap and observe the hole, and observe to be provided with on the hole and seal the resistant high temperature glass who observes the hole. The utility model discloses it is long in the time of can effectively shortening the shut down that the coking piece took out the in -process, ensure the continuity of smoking.