A balloon lamp includes a main body and a Balloon cover (30), and the main body includes a Lamp housing (10) and a Lamp body (20). The Lamp body (20) is fixed to the bottom of the Lamp housing (10); the Lamp housing (10) has a Fan device (40); the Balloon cover (30) is detachably installed to the Lamp housing (10) for storing the Lamp body (20); an inlet is formed at the middle of the top wall of the Lamp housing (10) and communicated with a Containing cavity (11) of the Lamp housing (10), and aligned with the Filter device (60); the Lamp body (20) includes a circular Radiator (50) and a Power supply device (80) installed in the Radiator (50). The top wall of the Lamp housing (10) has a Filter device (60) aligned with the Air inlet (12) and can prevent dust or powder from entering into the Lamp housing (10); and the circular Radiator (50) and the Power supply device (80) drive the Fan device (40) to blow air continuously.