After constructing a MIDGE stove, you may be tempted to use it indoors. However, that is not advisable as a MIDGE is a simple device and there are no guarantees that all noxious fumes will be combusted within the apparatus.
In the following photographs, we see a more professional installation from China that produces wood gas, in a more controlled manner, for indoor use on stoves. The stove is intended for remote farmers, unable to get bottled gas, to gasify their waste straw.
On the left, we see a downdraught gasifier, followed by a filtration cabinet with blower. Finally, on the right, there is a dual burner gas hob.
A detail drawing follows. Excuse the comedic machine translation by the manufacturer.
Constructing something similar for one's own use would not be difficult but all the usual precautions for using a gas oven should be taken.