Pit digging device for landscaping planting

The pit digging device comprises a machine body, the front face, the rear face, the left face and the right face of the machine body are each in an n shape, handle rods are fixedly installed on the periphery of the top of the machine body, first empty grooves are vertically formed in the positions, close to the hollow position, in the left side and the right side of the front face of the machine body, and second empty grooves are transversely formed in the tops of the first empty grooves. Shaft rods transversely penetrate through the center positions of the fixing frames and vertically rotate, conical teeth are fixedly connected to the tops of the two ends of each shaft rod, shaft seats are fixedly installed on the tops of the left side and the right side in the second empty groove, spiral rods are fixedly connected to the bottoms of the shaft seats, conical teeth are fixedly connected to the spiral rods, and the spiral rods vertically and horizontally rotate to extend to the bottom in the first empty groove