The invention relates to a method and air feeding device for producing anodes in an annular kiln (10), comprising at least one kiln unit ("fire") (11) having a heating zone (13), a firing zone (14), and a cooling zone, each having a plurality of kiln chambers (12) connected to each other by means of heating channels (17), said chambers being implemented as heat exchangers and serving for receiving anodes, wherein primary air is fed into the cooling zone for guiding air through the kiln unit by means of a primary air feeding device (21), and is led out of the heating zone as smoke gas by means of an exhaust device (22) after passing through the firing zone, wherein secondary air is fed in the heating zone by means of a secondary air feeding device (24) upstream of the exhaust device in the direction of the primary air flow.