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.