The utility model discloses a double-roller asphalt mixing device. The double-roller asphalt mixing device comprises a dehumidifying roller module and a dust-removing roller module, wherein the dehumidifying roller module comprises a first roller, a dehumidifying box and a first combustor, which are obliquely arranged; the first combustor is connected with one side of the first roller; a first material inlet, a first material outlet and a first gas outlet are formed in the first roller; the first material inlet is connected with a first conveying belt for conveying wet asphalt aggregate; the first gas outlet is communicated with the dehumidifying box by a gas conveying pipe; the dust-removing roller module comprises a second roller, a dust-removing box and a second combustor, which are obliquely arranged; the second combustor is connected with one side of the second roller; a second material inlet, a second material outlet and a second gas outlet are formed in the second roller; the second material inlet and the first material outlet are connected with each other by a second conveying belt; and the second gas outlet is communicated with the dust-removing box by a conveying pipe. The double-roller asphalt mixing device disclosed by the utility model has the advantages of high dust removing efficiency, stable aggregate quality, high mixing yield and stability for controlling heating temperature.