Tree transplanting pit digging device for landscaping

The utility model discloses a landscaping tree transplanting pit digging device, which comprises a support frame and two support seats, the lower surface of the support frame is fixedly provided with support rods which are symmetrically distributed, the support rods are slidably arranged on the support seats, the bottom surface of the support frame is fixedly provided with a motor, an output shaft of the motor is fixedly provided with a connecting seat, and the connecting seat is fixedly provided with a connecting rod. By arranging the supporting frame, the supporting base and the supporting rod, a motor can be supported, the motor drives a sleeve to rotate, then a drill bit is driven to conduct drilling operation, and by arranging the sleeve, a tool rest opening, a tool rest, a cutting tool and an adjusting device, the adjusting device can adjust the position of the tool rest in the tool rest opening at the same time; the outer diameter, capable of being cut, of a cutting knife is adjusted, then the drilling