NOVELTY - Treatment apparatus (1) including a heat generator (31) in a heating unit of a reaction vessel (2) containing organic waste and soil microbe, is new. A hot air guide passage (30) is provided to guide hot air along outer wall (29) from a generator to an upper space (2c) for injecting toward the organic waste.    USE - The new apparatus is useful for treating organic waste to form fertilizer.    ADVANTAGE - The new apparatus enables uniform heating of organic waste at all portions, as hot air guide passage is provided for guiding the hot air generated. It enables efficient heating of organic waste at high speed and for short time fermentation. Resourcing of organic waste within short time is enhanced.    DETAILED DESCRIPTION - The hot air is passed to cover front portion (28) through a bottom portion (3) from the back (27) of the reaction vessel. A stirrer (13) is provided to stir the organic waste by rotatable distribution. The hot air is generated by spraying air on an electric heater (37) with an air blower (36). The electric heater has multiple heat exchanger fins equipped in its periphery. An air flow line (35) is provided which connects the ventilation mouth of the hot air generator and a heater accommodation chamber (33). The air blower is connected to the upper end of the ventilation mouth (34). The electric heaters are distributed in cross direction of the heater accommodation chamber at a predetermined space. Air shunt boards are provided to disperse orthogonally flowing air towards air heaters. The hot air guide passage is mostly formed on the identical cross direction dimension, with the cross direction dimension of the reaction vessel. An exhaust port (6) is provided on the upper portion of the reaction vessel. A cover closes the exhaust port when the internal temperature or pressure becomes a predetermined value. A communication of a hot air recirculation line to the exhaust port is performed through directional control valve until the internal temperature or pressure is below the predetermined value. The exhaust gas line is in the closed state when the communication of hot air recirculation line and exhaust port is performed. The exhaust port is communicated to the exhaust gas line and hot air recirculation line, when the internal temperature or pressure reaches the predetermined value.    DESCRIPTION OF DRAWING(S) - The figure shows the right hand side surface sectional view of the organic waste treatment equipment.    Treatment apparatus (1)    Reaction vessel (2)    Upper space (2c)    Bottom portion (3)    Exhaust port (6)    Stirrer (13)    Regions of back (27)    Front portion (28)    Outer wall (29)    Hot air guide passage (30)    Hot air generator (31)    Heater accommodation chamber (33)    Ventilation mouth (34)    Air flow line (35)    Air blower (36)    Electric heater (37)