To me, the defining characteristic of a
rocket stove is the insulated heat riser which contains a "domesticated chimney fire," where it gets so hot that the smoke and
wood gases burn up. So, that's definitely not happening here, the goal is slow and low combustion.
The shape is reminiscent of a rocket stove, so I can see how you could call it a smothered rocket stove. You wouldn't want to build an actual rocket stove from
concrete blocks, because they couldn't take the heat. For this application it's just fine.
Cool smoker - thanks for sharing!