NOVELTY - The fuel processing apparatus (10) has a hollow-shaped center combustion chamber (30) which is installed at the center of inside of housing (20). A turbulence generation coil (31) is installed in the inner periphery of center combustion chamber, so as to generate turbulence in the flow of combustible waste gases, such that the heat transfer efficiency is improved. A burner (50) is installed in the center combustion chamber, for providing the heat necessary for catalyst reaction.    USE - Fuel processing apparatus for fuel cell, used for converting natural gas into reformate gas and for supplying reformate gas to fuel cell stack.    ADVANTAGE - The reformate reaction catalyst layer, high temperature conversion reaction catalyst layer and low temperature conversion reaction catalyst layer are serially arranged in the inner structure of housing, such that the volume of the fuel processor can be reduced. The structure of the fuel processor can be simplified. The gas reforming efficiency can be improved. The gas reforming process can be simplified. The need to install a flame guide in the center combustion can be eliminated. The thermal transfer efficiency of the processor can be improved. The need to install a temperature sensor port installed in the upper portion of center combustion chamber is eliminated, so that the transmission of heat to the outside through the sensor port is eliminated. Hence heat loss can be prevented. The turbulence generation coil is installed in inner periphery of the center combustion chamber, such that the heat efficiency can be improved. The fuel heating time can be reduced. The appropriate reaction temperature can be rapidly secured by preheating the low temperature conversion reaction catalyst layer. The low temperature conversion reaction can be performed easily. The combustible waste gas can be discharged to the outside through one port. The fuel processor can be manufactured easily. The manufacturing cost of the fuel processor can be reduced. The piping layout process can be performed conveniently.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the fuel processing apparatus.    Fuel processing apparatus (10)    Housing (20)    Combustion chamber (30)    Turbulence generation coil (31)    Burner (50)