Are you sure that's still there. Fcj19?
The website is down and then don't seem to be any online references within the past few years.
Further, I can't see it mentioned on the Dali Foundation website:
https://www.salvador-dali.org/en/museums/
I can't see it mentioned on Barcelona's official tourism website either:
http://www.barcelonaturisme.com/wv3/en/page/1/art-and-culture.html
Cloverjo:
If you can get to see some of Dali's work (somewhere) I strongly recommend the experience. I was lucky enough to visit the largest ever collection of his work a few years ago (at the Museo Nacional Centro de Arte Reina Sofía in Madrid) but, alas, it was only a temporary exhibition. It was totally mind-blowing!