Biomass pyrolysis device

The utility model discloses a biomass pyrolysis device, and belongs to the technical field of biomass energy utilization. The biomass pyrolysis device is characterized by comprising a pyrolysis chamber, a combustion chamber, an ash discharge pipe, a cyclone deduster, a heat exchanger, a circulation oil pump, a condenser, a settling chamber and a combustor, wherein the combustor is installed on the bottom of the combustion chamber; the ash discharge pipe is installed on the bottom of the pyrolysis chamber; the combustion chamber is arranged outside the pyrolysis chamber in a sleeving manner; the pyrolysis chamber is connected with the cyclone deduster by an outlet pipe; the condenser is communicated with the combustor by the settling chamber; an inlet of the circulation oil pump is connected to the side wall of the condenser by a pipeline; an outlet of the circulation oil pump is connected to the upper part of the condenser by the heat exchanger. According to the biomass pyrolysis device, fuel oil and biomass carbon can be obtained by biomass raw material pyrolysis, and heat sources are not required to be supplied additionally for a system; the biomass pyrolysis device has the advantages of running stability, no secondary pollution, low cost and the like, and is relatively easier to popularize and apply compared with an existing pyrolysis technology.