SILENCER FOR FUEL CELL VEHICLE

A silencer for a fuel cell vehicle includes: an internal pipe including a first drain disposed in a lower portion of an external circumferential surface thereof and configured to discharge water and a plurality of gas flow ports disposed in an upper portion of the external circumferential surface and configured to allow gas to flow therethrough; a housing surrounding the internal pipe and forming a space in which the water and the gas flow within the internal pipe; a drainage adjustment portion disposed inside the internal pipe and configured to open or close the first drain, wherein the drainage adjustment portion includes: a moving plate including a shape corresponding to a cross section of an internal space of the internal pipe and moving in an axial direction of the internal pipe according to flow of the gas.