Online sample processing device

The utility model relates to an online sample treatment device. The online sample treatment device comprises a heat exchange module, a gas-liquid separation module, a pressure regulation module and a drainage module, one end of the heat exchange module is connected with the sampling port; one end of the gas-liquid separation module is connected with the heat exchange module; one end of the pressure adjusting module is connected with the gas-liquid separation module, and the other end is connected with an instrument sample inlet; the drainage module is respectively connected with the low ends of the heat exchange module and the gas-liquid separation module; wherein the heat exchange module performs heat exchange on a sample, so that water vapor in the sample is condensed into liquid which flows into the drainage module, the gas-liquid separation module performs re-dewatering and filtering on the sample, and the pressure regulation module performs pressure stabilization on the treatment process. According to th