A hair dryer comprises a housing (1), a fan assembly, a heating element, and a handle (2). The fan assembly and the heating element are located in the housing (1). The handle (2) and the housing (1) are in rotational connection. An upper portion of the handle (2) is U-shaped. A rotating shaft is located at the end of the U-shaped upper portion. The U-shaped upper portion is provided with a hair brush at a position corresponding to the air inlet of the housing (1). The housing (1) can swing left and right on the handle (2). When the housing (1) is swung, the hair brush can clean the dust at the air inlet of the housing (1), making the hair dryer both simple and sanitary.