We report on the facile synthesis of a water-dispersible conducting polymer, polyazulene-polystyrenesulfonate (PAZ:PSS), using PSS as a template. PAZ:PSS can achieve an overall conductivity up to 0.1 S cm-1, and an ion Seebeck coefficient as high as 4500 μV K-1, demonstrating that PAZ:PSS is another promising water-dispersible polymer for thermoelectrics.