move to the countryside and let it smoke
Yes, the valier coal is smokey, but it's good coal with pretty good burning characteristics and a very good price. Try banking it a bit perhaps to lessen the smoke, other than that, preheated secondary air, loading a few pieces at a time or just dealing with the fact that it likes to smoke are probably your only options. It's been my experience that some stoves tend to burn this coal much better than others.
I'm surprised that it seems to smoke more for you than Thompson bros ohio coal; I've always found that coal to be particularly sulfurous and gassy.