what happend to bell's father in the movie?

I think u missed a whole part of the movie.

Belle left Beast's kasteel to save her father from the cold. She took him home pagina and let him rest in the warmth. Then he got trapped in the cellar with Belle, and we didn't see him until the end of the movie. In the final ballroom scene, he's standing volgende to Ms. Potts, and he's perfectly fine.

The screencap below is of him in the final scene of Beauty and the Beast in the ballroom, where he's standing volgende to Ms. Potts and Chip.