Range hood

The utility model discloses a range hood, which comprises an air duct cavity communicated with an air suction port, a smoke detection device arranged in the air duct cavity and fixedly mounted on a push rod, and a driving device fixedly connected to the range hood and used for driving the push rod to move, the smoke detection device is in a fixed-point detection state that the smoke detection device performs positioning detection at a first detection position and a second detection position respectively, and the driving device drives the push rod and enables the smoke detection device to move from the first detection position to the second detection position, or the driving device drives the push rod and enables the smoke detection device to move from the first detection position to the second detection position. A state in which the smoke detection device is moved from the second detection position to the first detection position; the position of the smoke detection device can be changed under the driving of