Slightly confused and will probably give quite a few of you a laugh, but oh well, here it goes.
If you have a Cyclone Dust Collector and it collects on the bottom into a drum, then it also has the filter that branches off of the top and comes down off of an elbow to get the minute dust that doesn't drop into the cannister below. Correct?
So are you gentleman talking about having the filter part go outside the wall and keeping the dust collector unit inside? Or are both outside in a closet and there is no cannister that is attached at the bottom, but instead a dust bin box that it falls into or it just goes to the ground and floats around if you don't have neighbors nearby? Correct?
In addition there would be no need for a filter, because the dust is minute and it would just fall down courtesy of Mr. Newton. Seriously, I know that I've read where woodworkers put their cyclones outside, but without anything on the bottom or no filter on the side? I remember a fella named Lou Sansone (sorry if I butchered your name, going by memory) had a picture of his painted maroon or red and he lives in Maine or Vermont area. Not sure if his setup is the same as what's being asked.
A picture of what the original poster is asking for would truly help. Any takers?
David