What kind of file is it? Is it a .ds_store by any chance?
sudo rm -rf ~./Trash/*
be extremely careful though... if you accidentally hit enter too soon the result might be catastrophic.
Try this:
sudo rm -ri ~./Trash/*
that is a bit more secure and will prompt you before it does anything.
Im sorry for being a "smartypants".
Can you rename the file?
Hold down the option key while you empty the trash.
From what your screenshot looks like, the file is on your Windows partition, which you should be able to delete in Windows after enabling hidden files.