Residual heat utilization device of macrotype Chinese cooking gas range

The utility model discloses a waste heat utilization device for a large Chinese cooking gas-fired stove; the waste heat utilization device comprises a flared heater; the bell mouth of the flared heater is arranged upward in the stove chamber; a burner inside the gas-fired stove is arranged at the middle of the bottom of the heater; the heater wall is a hollow interlayer on which a water pipe running through the internal and the external of the interlayer is arranged. The device of the utility model has simple structure and can make full use of the waste heat of the Chinese cooking gas-fired stove to prolong the service life of the stove and improve the kitchen environment; the air vents inside an insulation water tank enable the pressure and gas generated by the heated water inside the bowl-shaped heater to be discharged at any time when the pressure and the gas enter the insulation water tank, so that the water inside the flared heater can be heated under a state of normal pressure to ensure safe operation.