I need to root my Xperia Tipo Dual, but I can't connect the phone to a PC, Is it possible to get root without connecting it to a computer?
You may want to look at this question: How Can I Root my Sony Ericsson Tipo Dual?
The short answer is no, you need a computer.
Actually that would be hard as Google has banned applications which provide rooting for device warranty concerns. So actually you should search a bit on Google and you may get a site providing easy rooting tools. but you will need a pc.