So the guy who invented air conditioners had terrible allergies and was trying to dry out the air to remove most allergen particles. If you could rig up something with an AC unit on your intake that would help dry and filter your air. After that point I'd create a mass heater bench with drying racks above it for your clothes with a sterling engine blowing the warm air for more movement. The wood heat chimney I'd run through the middle of your room vent pipe so it's heat radiation would help pull a draft for your vent. the sterling engine and vent draft would be passive but only work when you fire the mass bench but when you'd need to dry NOW they'd kick things into overdrive. I see the previously mentioned baffles as a way to control what parts of the chain need to be used, you don't need the ac to dry & filter air as much in winter, you might not need the mass bench to fire in summer or maybe just for a couple hours and let the mass slowly dump its heat all day.
