The invention discloses a conveniently moving 3D printer. A printing material feeding pipe is arranged on the lower side of an upper end cover of the 3D printer, a printing material discharging showernozzle is arranged at the tail end of the printing material feeding pipe, a heating device is arranged between the printing material feeding pipe and the printing material discharging shower nozzle,a servo motor is arranged below a 3D printer main body, a worktable plane is arranged on the upper side of the servo motor, the 3D printer main body is supported through four supporting rods under the3D printer main body, and the bottom end of each of the supporting rods is hinged to a combined bracket. Portable moving and fixing functions of the 3d printer are achieved by being matched with rollers and supporting legs, and the conveniently moving 3D printer is reasonable in design, easy to operate, high in printing speed and delicate and attractive to print.