I need help

This dog is driving me NUTS! She is refusing to be potty trained. My problem is that she pees and poops in her cage!!! She doesn't care. She will lay right in it and have shit in her paws and her fur soaked in pee and she doesn't seem to mind. I have no idea how I am supposed to get her over that! I just scrubbed my area rug to get pee stench out and got on my hands and knees to scrub my entire downstairs, which includes an eat in kitchen (pretty big) a formal dining room, a half bath, and the living room. It was a lot. Well while I am doing it I end up finding 5 spots where she peed on the floor and we didn't know it. I am telling you we watch this dog like a hawk to make sure we catch her in the act. Not to mention the fact that I take her out every 20 minutes!!! PLEASE if you have potty trained a dog successfully in the past email me and tell me how the heck you accomplished it! And if you have suggestions on what to do about the potty in the cage thing I would love those too. I would really like this dog if I could get her trained, but right now I can hardly stand to touch her cause I am sure she is covered in pee!!!! UGGGG! I am going to dry out her skin cause I wash her so much, but what am I supposed to do let my kids play with a dog covered in pee! HELP ME!!!!