Throughdraft

The hot gases could have been forced up through the ceramics and then down to escape through the chimney (a downdraft kiln) or pulled across by the chimney (a crossdraft or throughdraft kiln).

Source: wiktionary

The Yangshao site at Banpo near Xi'an in Shaanxi province has brought to light remains of both throughdraft and updraft kilns, with a separate fire box for the fuel either in front of or below the firing chamber for the pots.

Source: wiktionary

These told us that we get a wonderful throughdraft in summer and buoyant air escaping through the apex of the roof.

Source: wiktionary