Efficient planar intermittent heating furnace

The invention discloses an efficient planar intermittent heating furnace which comprises a heating furnace body and a heating hearth space formed by the heating furnace body. An inner heat insulation layer is arranged on the inner side surface of the heating furnace body; the heating furnace body is provided with a main fuel combustion nozzle, a planar arrangement type combustion nozzle, a temperature measuring device, an oxygen content measuring device, a heating furnace door, a combustion tail gas outlet, electromagnetic valves and corresponding fuel and air inlets; the plurality of planar arrangement type combustion nozzles are respectively distributed on the upper, lower, left and right side surfaces of the heating furnace body; the electromagnetic valves of the fuel inlet and the air inlet are respectively connected with a temperature measuring device and an oxygen content measuring device; the combustion tail gas outlet is formed in the rear lower part of the heating furnace body. According to the struc