I reckon one of those blowers would work fine if it was used while milling and caught the sawdust as it flew, once it was on ground and settled, no chance it would move a few days worth, but the blade and guard chuck it out the way well enough.
Another thing I've done when the pile is stacked nice and close to the mill, after a couple of days, I have just picked the endframes up out of the sawdust and put 'em on top of it then kept milling, no need to do anything with it then and the mill is quick enough to level up again, don't even need to move the ground pegs, just undo the T handle when the endframe is 'dug' out of the sawdust and re-tighten once you have placed the bottom rail on top of the sawdust...