Pooh and Sunny are right. Your daughter is choosing her father over you because he is not just an enabler, but a cheer leader for her addictions. Till she hits bottom, she gets to enjoy being high without being judged. When she hits bottom, she may come to you, but at that time you will have to summon every ounce of strength to get her into long-term rehab and make her be responsible for her situation. It's then that a loving parent wants to give money, food, a place to stay ... and things can go terribly wrong. Any support you may give has to be a result of her taking proper steps, and given only to further her getting clean. Don't give her money. If any is to be spent, it should go directly to rehab.
A friend once said to me that adult children often think they love the parent who left them, and hate the parent who stayed. I think there's a lot of wisdom in that observation. If you read the stories on this site, you'll see that is often the case.
Come back often to draw strength and support!