Umbrella Replacement: A Stick that Shoots Air at the Rain?

The creator of Kickstarter campaign claims that they have developed an umbrella that pushes air against rain and it manages to prevent the owner from getting wet. The device passed by a funding of $10,000 and they decided to call it Air Umbrella.
There are still a lot of questions and doubts for...
Umbrella Replacement: A Stick that Shoots Air at the Rain?