NOVELTY - A crushing bucket, comprises a bucket shell (1) and a dividing wall placed in cavity of bucket shell; the dividing wall divides cavity of crushing bucket shell into two front and rear cavities; the dividing wall has hole for connecting front and rear cavities; the rear end of bucket shell has material exit; the front cavity has spiral feeding structure (3); the spiral feeding structure comprises several side-by-side rotation shafts; the rear cavity has several breaking drums, the breaking drum comprises spiral feeding structure and drive structure.    USE - As crushing bucket (claimed) used for mixing and crushing material of compost prophase.    ADVANTAGE - The crushing bucket is placed on a load carrier for transferring, mixing and breaking high humid material with a moisture content of 20-70%. The crushing bucket provides improved efficiency, is convenient for composting, and reduces compost operating cost.    DETAILED DESCRIPTION - A crushing bucket, comprises a bucket shell (1) and a dividing wall placed in the cavity of the bucket shell; the dividing wall divides the cavity of the crushing bucket shell into two front and rear cavities; the dividing wall is provided with a hole for connecting the front and the rear cavities; the rear end of the bucket shell is provided with a material exit; the front cavity is provided with a spiral feeding structure (3) for delivering composted material to the hole of the dividing wall; the spiral feeding structure comprises several side-by-side rotation shafts, the periphery of the rotation shaft is provided with helical blades; the rear cavity is provided with several breaking drums for breaking composted material, the breaking drum is placed side by side, comprising a spiral feeding structure and a drive structure for powering the breaking drum.    DESCRIPTION OF DRAWING(S) - The figure shows view of a crushing bucket.    Bucket shell (1)    Protection grid (2)    Spiral feeding structure (3)    Isolated wall (4)    Crushing drum (5)    Three connecting structure (6)    Lift arm (7)