Multifunctional feeding biomass heating furnace capable of burning firewood, corncobs and biomass particles

The multifunctional feeding biomass heating furnace comprises a combustion furnace, the bottom of the rear side of the combustion furnace is connected with an ash receiving box through a bolt, the ash receiving box is communicated with the combustion furnace, an inner cavity of the combustion furnace is connected with an ash leaking plate through a bolt, and the ash leaking plate is communicated with the combustion furnace. An ash discharging mechanism is arranged at the bottom of an inner cavity of the combustion furnace, and a feeding mechanism is arranged on the front side of the combustion furnace. The biomass heating furnace has the advantages of automatically cleaning the furnace bottom and treating flue gas, and solves the problems that an existing biomass heating furnace cannot perform heat recovery and purification on flue gas, flue gas generated by combustion of biomass materials can carry a large amount of heat and harmful gas, heat recovery cannot be performed, resources are wasted, harmful gas ca