Porous ceramic 3D (three-dimensional) printer

The utility model discloses a porous ceramic 3D printer. The porous ceramic 3D printer comprises a printer frame, a wire feeding mechanism, a printer nozzle and a residual alarming device. The wire feeding mechanism is arranged on the printer frame and comprises a wire feeding motor bracket, two wire guide pipes, a heating block, two wire feeding motors, two wire feeding gears, two wire feeding wheels, two wire feeding wheel racks and two thermocouples. The wire feeding motor bracket is mounted on the printer frame; one ends of the wire guide pipes are connected with the wire feeding motor bracket, and the other ends of the wire guide pipes are connected with the heating block; a Y-type pipe is arranged under the heating block, and the wire guide pipes are connected with the printer nozzle through the Y-type pipe. The porous ceramic 3D printer can print wires to be printed of different colors or print wires and support materials simultaneously without guard, thereby being high in working efficiency and greatly easing the labor burden of operators and meanwhile simple in structure and high in practicality.