The utility model provides a dual-fuel lighter. According to the lighter, a gas lighting device with a gas lighting head and an oil combustion device are arranged inside the lighter body, and a closed partition board is arranged between the gas lighting device and the oil combustion device, so that an independent gas chamber and an independent oil chamber are formed respectively. During usage, a screwing head is unscrewed to add fuel such as kerosene into the oil chamber, the gas lighting device is pressed, then the gas lighting head is lighted, the lighter body is inclined slightly to light an oil combustion head immediately, a pressing handle of the gas lighting device is loosened, and the oil combustion head burns independently as a flame for usage, so that the lighter is used widely, is low in cost and is particularly applicable to replacement of matches which are used for lighting originally in kitchens in villages currently.