A smoke generating device with induction heating in a folded airway, wherein the smoke generating device comprises: a cigarette introduction pipe , an induction coil , a heating cup , a heating element and a magnetic sealing element ; wherein, the cigarette introduction pipe is disposed at the upper end of the smoke generating device, with a hollow tubular structure, an internal cavity of the hollow tubular structure is an air-mixing cavity , the center of the upper end of the cigarette introduction pipe is a first introduction hole , and the center of the lower end is a second introduction hole , the outer ring of the first introduction hole is provided with a plurality of air-guiding grooves , and a diameter of the air-mixing cavity is larger than that of the first introduction hole , the second introduction hole and the first introduction hole have the same diameter and are co-axial, the lower end of the cigarette introduction pipe has at least one air inlet channel ; the heating cup is disposed under the cigarette introduction pipe , it has a hollow cup-shaped structure as a whole, with a cigarette accommodating cavity inside, with at least one air inlet hole at the bottom of the cup; the magnetic sealing element surrounds the periphery of the heating cup , it has a hollow cup-shaped structure as a whole, the bottom of the cup is sealed, there is an airflow channel between the inner wall of the magnetic sealing element and the outer wall of the heating cup ; the heating element is disposed in the airflow channel, and the heating element is made of a ferromagnetic metal with a structure that the air can pass through; the induction coil is disposed on the periphery of the magnetic sealing element and is connected to a power source; airflow is in communication between the air-guiding groove , the air-mixing cavity , the air inlet channel , the airflow channel, the air inlet hole , and the cigarette accommodating cavity . wherein, the cigarette introduction pipe is disposed at the upper end of the smoke generating device, with a hollow tubular structure, an internal cavity of the hollow tubular structure is an air-mixing cavity , the center of the upper end of the cigarette introduction pipe is a first introduction hole , and the center of the lower end is a second introduction hole , the outer ring of the first introduction hole is provided with a plurality of air-guiding grooves , and a diameter of the air-mixing cavity is larger than that of the first introduction hole , the second introduction hole and the first introduction hole have the same diameter and are co-axial, the lower end of the cigarette introduction pipe has at least one air inlet channel ; the heating cup is disposed under the cigarette introduction pipe , it has a hollow cup-shaped structure as a whole, with a cigarette accommodating cavity inside, with at least one air inlet hole at the bottom of the cup; the magnetic sealing element surrounds the periphery of the heating cup , it has a hollow cup-shaped structure as a whole, the bottom of the cup is sealed, there is an airflow channel between the inner wall of the magnetic sealing element and the outer wall of the heating cup ; the heating element is disposed in the airflow channel, and the heating element is made of a ferromagnetic metal with a structure that the air can pass through; the induction coil is disposed on the periphery of the magnetic sealing element and is connected to a power source; airflow is in communication between the air-guiding groove , the air-mixing cavity , the air inlet channel , the airflow channel, the air inlet hole , and the cigarette accommodating cavity . <EOS>