The invention discloses a rotary
weed root eradicator, which comprises a cylindrical shell, wherein a motor and a transmission connected with the motor are arranged in the shell; the head part of the transmission drives a cutter bar; a combined
cutting tool is arranged on the head part of the cutter bar; and the motor is driven by a direct-current or an
alternating current power supply to drive the transmission, so that the combined
cutting tool is driven by the cutter bar to rotate. A connecting rod is arranged on the
tail part of the shell, a control
handle is arranged on the
tail end of the connecting rod, a power wire of a
direct current battery penetrates through the connecting rod, and a speed
control switch and a charge socket are arranged on the
handle. The technical scheme provided by the invention is different from that of the traditional weeding equipment and adopts a rotary drilling and chipping mode to smash the leaves of single
weed together roots, and the
cutting tool is relatively small, so that the green land nearby is little damaged in a weeding process. Compared with manual weeding, the rotary
weed root eradicator provided by the invention has higher efficiency and better weeding effect.