Portable small direct methanol fuel cell

The utility model relates to a portable small-sized direct methanol fuel cell, which comprises a main body frame, an electric pile assembly arranged in the main body frame, a material supply system and a heat dissipation system, the material supply system comprises a liquid mixing barrel, a methanol pump for pumping an external methanol solution into the liquid mixing barrel, a liquid mixing pump for pumping the methanol solution in the liquid mixing barrel into the galvanic pile assembly, a fan directly connected with a gas input port of the galvanic pile assembly, and a filter for filtering the methanol solution in the liquid mixing barrel; the filter is integrally connected with the liquid mixing pump, the heat dissipation system comprises a plurality of radiators connected with the electric pile assembly, and the plurality of radiators are connected below the electric pile assembly and stacked beside the liquid mixing barrel. The fan is directly connected to the galvanic pile assembly to replace a traditi