Could a Vortex propulsion system actually work?

I was looking at some pictuees of saucers and etc and what I saw was how obe had what looks like and spint like a ceiling fan (which would create thrust. Thus making the craft lift and if you close a certain vent hypothetically you would sway or manuver in a different direction) if you're good with physics youd understand. Anyways the of this craft is for unmanned flight (why there arent any doors or hatches) another way coukd be having blades. Over a circle portion of vents that lets air attract and at phonemonial rates. Anyways this just a hypothesis could such a craft be possible. (Saucer)