Practical cultivator

The invention discloses a practical cultivator which comprises a rack, an engine, a speed changing box, a handle assembly and a rotary tillage work mechanism. The engine, the speed changing box and the handle assembly are arranged on the rack. The rotary tillage work mechanism comprises a power output shaft, a tool apron fixed to the power output shaft and rotary blades fixedly arranged on the tool apron. The speed changing box comprises a box body and a transmission speed changing mechanism arranged in the box body. The practical cultivator is characterized in that the transmission speed changing mechanism comprises a gear changing shaft fixedly provided with a shifting fork, a power input shaft, an intermediate wheel shaft, a transmission shaft, a power input wheel, a gear shifting gear, an intermediate wheel installed on the intermediate wheel shaft, a transmission wheel and a chain wheel, wherein the power input wheel and the gear shifting gear are installed on the power input shaft, and the transmission wheel and the chain wheel are installed on the transmission shaft. The transmission shaft is further sleeved with a duplicate gear in a clearance mode, and the duplicate gear comprises a reverse gear and a small gear. The practical cultivator is provided with a reverse gear mechanism, the reverse action of the whole cultivator can be easily achieved, and the practical cultivator is complete in cultivating coverage and long in service life.