I've taken a look at your photos and while bumblefoot typically is in the feet and contains a "bumble" or kernel that is the source of the problem - they can get abcessed infection from any kind of injury that will look the same and need to be treated the same - meaning: clean out the wound, possibly lance deep into the swollen area over the wound in order to get out all infection - then pack with Neosporin and wrap.
I've cleaned up many swollen body parts on the chickens that weren't bumble - just abcessed infection. When a chicken gets an infection it doesn't stay a liquid puss like humans would - it turns to a rubbery, cottage-cheese consistency and builds up and needs to be cleaned out.
Hope this helps. Her leg looks pretty bad and shouldn't be bleeding after this long. Which to me indicates an infection in there that isn't healing. If it were me, since she's already bleeding, I would cut into the wound and see if there is something that needs to be cleaned out.
Good luck.