That's a Napoleon smoker but cool nonetheless.
I'm just picturing this - I'd love to see someone dressed up as Darth Vader tending to an R2D2 smoker, if one could be made with high temperature paint that wouldn't be a food safety risk.
There's a guy here in the Baltimore area that makes these, and has a perpetual ad on CL fishing for 18" bowls. Must be a thing for the Star Wars fans. As far as I know, they are not used as grills or smokers post conversion.