NOVELTY - The device comprises a drum (1) rotatable around its longitudinal middle axis, and a drive (6) for rotating the drum, which is equipped with an opening (2) for filling the waste, and in interiorly arranged mixing elements for mixing the contents. The drive is coupled with the drum by self-locking reduction gear mechanism or by screw gear mechanism, which has a gear reduction of 50:1. The drive has a drive shaft (9), which is connected with a hand crank (10) or an electromotor for rotating the drum. The drum is equipped with a snail-wheel at front side.    USE - Device useful for composting household waste and garden refuse.    ADVANTAGE - The device ensures simple and efficient composting of household waste and garden refuse without effort.    DETAILED DESCRIPTION - The device comprises a drum (1) rotatable around its longitudinal middle axis, and a drive (6) for rotating the drum, which is equipped with an opening (2) for filling the waste, and in interiorly arranged mixing elements for mixing the contents. The drive is coupled with the drum by self-locking reduction gear mechanism or by screw gear mechanism, which has a gear reduction of 50:1. The drive has a drive shaft (9), which is connected with a hand crank (10) or an electromotor for rotating the drum. The drum is equipped with a snail-wheel at front side and the drive shaft has a worm shaft interfering in tooth system of the snail-wheel. The snail wheel is formed through a ring element equipped with recess for the formation of the tooth system, where the ring element is connected with the drum. The recesses are formed in the snail-wheel through stamping. The snail-wheel has a diameter of 50 cm and forms a radial spacer for a guidance ring surrounding the snail-wheel so that a groove-shaped recess for the reception and guidance of sliding doors is limited between the external wall of the drum and the guidance ring. The front side of the drum is equipped with ventilation openings, which reach in radial direction approximately up to the drum wall.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic side view of a composting device.    Drum (1)    Opening (2)    Drive (6)    Drive shaft (9)    Hand crank. (10)