Some time I made a fireworks volcano in Blender. I took me about an hour to finish it. Most of the time i spent in setting up the particle system and the smoke simulation. Maybe I should have added some wind or something like that so the fountain doesn’t look so straight^^.
this “Volcano” is seems to be fountain
Particle emission is too regular. Volcano eruption is more explosive.
And of course you must use smoke simulation to show Smoke, not confetti.