Biomass combustor

The utility model provides a biomass combustor which comprises a main framework. A combustion chamber is arranged in the main framework, a fuel feed inlet is arranged on a side of the main framework, a residue discharge machine and a blower are arranged at the bottom of the main framework, and a fire grate is arranged at the bottom of the combustion chamber. The biomass combustor with the structure has the advantages that biomass energy is used as fuel, dust is effectively prevented from flying in an ambient environment, zero carbon dioxide emission is realized, high-temperature flue gas can be utilized for wet material drying or heat exchange, and is environment-friendly, the biomass fuel runs via the fire grate so as to be combusted completely, provided heat is greatly increased, residues generated after the biomass fuel is combusted are mechanically and automatically discharged by the residue discharge machine, and the labor intensity is greatly reduced for personnel.