Fuente: WIPO "tobacco agriculture" The invention discloses an integrated built-in heat supply device of a biomass energy bulk curing barn. The integrated built-in heat supply device comprises a combustion furnace and a heat exchanger,wherein a furnace door is arranged on the combustion furnace, and a feeding mechanism is arranged on the furnace door of the combustion furnace and extends into a hearth of the combustion furnace; anigniter and a fire viewer communicating with the outside are arranged in the hearth; a protective cover is arranged at a connecting part of the furnace door and the feeding mechanism, the heat exchanger is arranged at the top of the combustion furnace through a bracket, and the heat exchanger is communicated with the hearth of the combustion furnace through a high-temperature flue gas conduit. Theintegrated built-in heat supply device disclosed by the invention is compact in structure, simple in layout, energy-saving and consumption-reducing, coal energy is replaced with fuels such as coal, firewood, biomass gas and the like, the consumption of non-renewable energy is reduced, the fuel consumption is less, and temperature rise and heat exchange speed are fast; the waste heat of the high-temperature flue gas exhausted by the combustion furnce can be recycled, the utilization efficiency of heat energy is further improved, the heating capacity and the heating effect are improved, and theheat energy loss is reduced, thereby reaching aims of improving the quality and reducing the loss of tobacco leaf baking, reducing the cost and improving the efficiency.