Besides a burning pillar, this fourth degree Adoption tracing board (Maitresse Parfait) also has a smoking pillar.
An explanation appears to be on a 29th degree Ancient and Accepted Scottish Rite where: “two columns, holding flames in their chapters, representing the elements of fire and air”, which is more clearly pictured on the image above. The description of the drawing above is hard to make out, but the text seems to speak about a column of fire and one of smoke.
Untitled and undated document in the Bibliotheque Nationale de France FM4 (1323), digitally available