NOVELTY - Exhaust gas flows from a carbonization reactor (22) into a conical cyclone combustor (23). A pipe supplies high-temperature combustion gas to the combustor for burning unburnt substances present in the exhaust gas. The exhaust gas and combustion gas flow together in the shape of a whorl, inside the combustor.    USE - For the carbonization of waste wood material produced during building demolition for charcoal manufacture.    ADVANTAGE - Since the cyclone combustor combusts the harmful unburnt substances present in the exhaust gas of the carbonization reactor, environmental pollution is reduced. Since charcoal is manufactured from waste timber, recycling of resources is enabled. Since fine, solid, carbonized material formed in the cyclone combustor is separated from the exhaust gas of the cyclone combustor, clean exhaust gas is ejected to the atmosphere. Since crawler mounted carbonization furnace is used, recovery of charcoal even in difficult-to-access areas such as remote districts located between mountains is possible. Since the furnace is moved to the site at which waste timber is generated, there is no need for transportation of timber. Since rubber made crawler is used, travel of the furnace even in snow covered areas is easy.    DETAILED DESCRIPTION - Gas and fine solid substances obtained by combustion are separated. The crawler mounted carbonization furnace (1) has a cooling water jacket enclosing the carbonization reactor. The reactor has an upwardly inclined flue (39) whose outlet communicates with an inlet of the cyclone combustor, through a connection path. The end of the combustion gas supply pipe opens in the connection path. A burner is arranged at the base end of the pipe. The base end of a chimney (51) is attached to the top wall of the combustor. Fine solid substances are conveyed by a screw conveyor arranged below the combustor.    DESCRIPTION OF DRAWING(S) - The figure shows a side view of the crawler mounted carbonization furnace.    Crawler mounted carbonization furnace (1)    Carbonization reactor (22)    Conical cyclone combustor (23)    Flue (39)    Chimney (51)