Gas-steam boiler for producing fermented millet vinegar

The utility model provides a gas-fired steam boiler for producing fermented millet vinegar. The device comprises a steam furnace, supporting legs, a steaming furnace, a ball bearing, a left side steamleading-in frame structure, a protection frame, an auxiliary rotary stirring frame structure, a feeding pipe, a lower side connecting flange plate, a detachable filtering frame structure, an upper side flange connecting plate, a leading-in pipe, a thermometer, an air pressure sensor, an exhaust valve and a discharging pipe, and the supporting legs are welded to the four corners of the lower portion of the steam furnace; and the steaming furnace is mounted at the upper part of the steam furnace through bolts. The rotary rod is arranged on the inner side of the steaming furnace and is insertedinto the inner ring of the ball bearing, so that the rotary rod can be used for driving the auxiliary stirring blades to rotate during use, and materials in the steaming furnace can be mixed; the first filter screen, the secon