Double-cracking-furnace combustion system capable of measuring total sulfur content in liquid, solid and gas

The invention relates to a double-cracking-furnace combustion system capable of measuring the total sulfur content in liquid, solid and gas. The double-cracking-furnace combustion system is provided with a gas supply device, a high-temperature cracking unit, a membrane dryer, a detection unit and a control unit, the high-temperature cracking unit comprises a vertical combustion unit and a horizontal combustion unit; the vertical combustion unit comprises a vertical cracking furnace cavity, a first quartz tube and a first sample introduction device for vertical sample introduction; the horizontal combustion unit comprises a horizontal cracking furnace cavity, a second quartz tube and a second sample introduction device for horizontal sample introduction; the gas outlet ends of the first quartz tube and the second quartz tube are jointed to the jointing cavity; the air outlet end of the converging cavity is connected with the membrane dryer; the membrane dryer is connected with the detection unit; the detection