The present invention provides an air blowing device that facilitates connection of a power cable to a main body portion and suppresses slack of a power cable. The air blowing device supplies power tothe main body portion by utilizing a power cable (33) connected to a ceiling rosette, and has a cable length variable device (34). The cable length variable device (34) includes a cable receiving portion (62a) and a cable length variable portion (a fixed pulley 64, a movable pulley 65, a guide groove 66, and a tension spring 67) that change the length of the power cable (33) pulled out.