Hot blast stove and nitrogen making machine system with same

The utility model provides a hot-blast stove and a nitrogen making machine system with the same. The hot-blast stove comprises a combustion engine, the combustion engine is provided with an inner cavity, the center of the top face of the combustion engine is provided with a center fuel gas channel, the center fuel gas channel is communicated with the inner cavity, and a plurality of inner ring fuel gas vents are distributed in the circumferential direction with the center fuel gas channel as the center; a plurality of outer ring fuel air vents are formed in the outer surface of the clamping sleeve, and the outer ring fuel air vents are communicated with the gap. The hot-blast stove is formed by wrapping a jacket on the outer layer of a burner, the side edge of the jacket of the hot-blast stove is communicated with an outer ring fuel vent, and the top of the hot-blast stove is communicated with an inner ring fuel vent. Through the arrangement, gas in the center of the hot-blast stove can be cooled through gas