Biomass energy air-returning type dry distillation furnace

The utility model particularly relates to a biomass energy air-returning type dry distillation furnace which resolves the problem that an existing dry distillation furnace is poor in heat transmission effect, low in heat efficiency and high in energy consumption and pollutes the environment. The biomass energy air-returning type dry distillation furnace comprises a furnace body. A furnace inner container is arranged in the furnace body, an upper end cover for sealing the furnace inner container is covered at the upper end of the furnace inner container, a fan located in the furnace inner container is arranged on the upper end cover, a protective air pipe with one side located in the furnace inner container, a vent pipe and an atomizing cooling pipe penetrate into the lateral wall of the furnace body, and a material basket is arranged in the furnace inner container. The biomass energy air-returning type dry distillation furnace is reasonable and reliable in structural design, greatly improves heat transmission