NOVELTY - A pyrolytic processing apparatus has thermal decomposition furnace (11) for heating and thermally decomposing to-be-treated organic material (12) and producing thermal decomposition gas and residue, thermal decomposition gas ejector (22), oil storage tank (24), off gas suction nozzle (33) for sucking off gas stored in tank, off gas suction ejector (34) and off gas combustion furnace (16) for burning off gas. Ejector (22) condenses thermal decomposition gas and recovers thermal decomposition oil. The tank (24) stores condensed oil and off gas which is not condensed.    USE - For pyrolysis processing of to-be-treated organic material such as biomass of timber, sludge, livestock excrement and organic refuse.    ADVANTAGE - The pyrolytic processing apparatus easily enables pyrolysis processing of to-be-treated organic material and waste heat produced by off gas combustion is effectively used as heat source for thermal decomposition and boiler.    DETAILED DESCRIPTION - A pyrolytic processing apparatus has a thermal decomposition furnace (11) for heating and thermally decomposing to-be-treated organic material in low oxygen state and producing thermal decomposition gas and residue, a thermal decomposition gas ejector (22), an oil storage tank (24), an off gas suction nozzle (33) for sucking off gas stored in tank, off gas suction ejector (34) and off gas combustion furnace (16) for burning off gas supplied from nozzle and ejector (22). The ejector (22) condenses thermal decomposition gas produced from furnace and recovers thermal decomposition oil. The tank (24) stores condensed oil and off gas which is not condensed.    DESCRIPTION OF DRAWING(S) - The figure shows the conceptual systematic diagram of thermal decomposition of oil formation processing apparatus. (Drawing includes non-English language text)    Thermal decomposition furnace (11)    To-be-treated organic material (12)    Off gas combustion furnace (16)    Thermal decomposition gas ejector (22)    Tank (24)    Off gas suction nozzle (33)    Off gas suction ejector (34)