NOVELTY - Organic-fertilizer manufacturing apparatus using putrefactive waste materials comprises a screw kneaded mechanism (11) attached to the drive shaft (9) in the cylindrical casing (6). Several vanes (16a,16b,16) are arranged at intervals in the upstream and downstream sides of the mechanism circumferentially, along the axis of the drive shaft.    USE - For manufacturing organic fertilizer using putrefactive waste materials such as a mixture of coarse organic substances, stock raising excretion, such as droppings of hen and cattle feces and straw, grass vinegar, chaff and timber chip.    ADVANTAGE - Improves cutting efficiency of raw material to obtain fine kneaded mixture reliably. Prevents co-rotation of raw-material and jamming within the casing.    DETAILED DESCRIPTION - Organic-fertilizer manufacturing apparatus using putrefactive waste materials comprises a screw kneaded mechanism (11) attached to the drive shaft (9) in the cylindrical casing (6). Several vanes (16a,16b,16) are arranged at intervals in the upstream and downstream sides of the mechanism circumferentially, along the axis of the drive shaft. The treatment tank (2) is equipped with the cylindrical casing with a discharge port, while an insertion opening (7) is provided at the upstream end. The downstream end of treatment tank and upstream end of another treatment tank are mutually connected through the connection which has an open closing switch gate. The screw kneaded mechanism is attached to the drive shaft in the casing. Several pins (12) preventing co-rotation of the raw material with the screw kneaded mechanism are provided at the central portion between the vanes. Multiple vanes are arranged at interval along the axis of the drive shaft, to discharge and get back the raw material respectively. The vane width and raw material discharge angle are setup respectively.    DESCRIPTION OF DRAWING(S) - The figure shows a sectional view of the internal structure of the treatment tank.    Treatment tank (2)    Cylindrical casing (6)    Insertion opening (7)    Drive shaft (9)    Screw kneaded mechanism (11)    Pins (12)    Vanes (16a,16b,16)