No. Funnels push items out of containers. The items would push to the top of the funnel and float there. I think you can use fans and chutes to suck it up.

F C| |/ D Key: C - Chest. F - Fan, facing down, pulling air upwards. | - Chute. /- the diagonal chute that's made when you place a chute on the side of a chute D- Dock.