Multifunctional rotary cultivator capable of preventing collapse

A hole block is fixed to the front end face of a machine frame in a rotary tillage piece, the hole block is fixed to agricultural equipment in an inserted connection mode through a pin shaft, a rotating shaft is horizontally and rotationally connected to the bottom face of the machine frame, a plurality of rotary tillage teeth are evenly fixed to the rotating shaft, and a first rotating frame is fixed to the top face of the machine frame; the ridging piece comprises a ridging plough, and the ridging plough is vertically and adjustably installed on the rear end face of the rack; one end of a ridging frame in the ridging piece is rotationally connected to the second rotating frame, and the bottom of the ridging frame is horizontally and rotationally connected with a compaction piece. The utility model overcomes the problems that the two sides and the upper part of the ridged soil ridge are not compacted, the gathered soil is relatively loose and the soil ridge is easy to collapse in the later period in the exis