Fuel cell system

A fuel cell system comprising a fuel cell module and a liquid water discharge channel for discharge of liquid water in the fuel cell module, wherein:

• the fuel cell module has:
• a fuel cell stack in which a plurality of fuel cell unit cells are stacked together,
• a reactive gas discharge manifold, which is formed of mutually linked reactive gas discharge flow holes provided in the plurality of fuel cell unit cells, and is formed so that, during use of the fuel cell system, reactive gas flows from the lower end in the vertical direction to the upper end in the vertical direction,
• a reactive gas discharge outlet that allows communication between the reactive gas discharge manifold and the exterior of the fuel cell module and, during use, is disposed so as to be located at the upper end of the reactive gas discharge manifold in the vertical direction, and
• a liquid water discharge outlet that allows communication between the reactive gas discharge manifold and the exterior of the fuel cell module and, during use, is disposed so as to be located at the lower end of the reactive gas discharge manifold in the vertical direction,
• wherein the liquid water discharge channel is connected to the liquid water discharge outlet in such a manner as to allow the liquid water to flow inside it.