the separating wall 35 at which the passage holes 36 are bored a screw conveyer 37 is positioned under the aperture 3 in the drying device 27 it is possible that the fermentor 9 is connected with the circulatory pipe 10 on the way of which the ventilator 11 the valve 12 the air intake 13 the dehumidified water collector 14 and the dehumidfier 15 of the compositing device 1 are respectively arranged it is also possible that the fermentor 9 is connected with the exhaust pipe 16 on the way of which the first deodorizing tank 17 the second deodorizing tank 18 the third deodorizing tank 19 and the vacuum pump 20 of the compositing device 1b are respectively arranged it is possible to connect the circulatory pipe 10 or and the exhaust pipe 16 to the lower drying device 27 as shown in fig7 the manufacturing device for pellet 38 includes a screw press 40 at which the hopper 39 is equipped the composted waste a which is treated by the compositing devices 1 1a is transferred into the hopper 39 the exhaust holes 41 41a are bored at the exhaust plate 42 which is attached to the exhaust tip of the screw press 40 the treated waste is pressed out of the exhaust holes 41 41a of the exhaust plate 42 a cutter 43 which is located adjacent.