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Lots of YouTube vids on constructing hollow walled fire pits such that cold air is drawn into the cavity from the bottom, gets heated on the way up the inside of the wall and then gets injected a bit below the lip of the fire pit.
Facilitates a secondary burn of the smoke.
I’ve had a few plays with my own designs - not got it perfect yet, but a smokeless fire pit has got to be the goal!
(Edit) Looks like that is sort of what you are looking at, just off the shelf.
Possible OT but looking for a fire pit/ outside heater for summer evenings
Solo Stove is current front runner, any other suggestions?