Duxbury, 23, joins AFC Fylde on a two-year deal having spent four years with The Hatters, making 204 appearances.
“He's a young player with good experience, and comes from a team used to playing a club with plenty of expectation – so he can deal with that side of it,”Coasters boss Dave Challinor told the club's official website.
“He's played over 200 league games at National League North level, and we are confident that we can continue to develop him and make him better.”
Duxbury enjoyed two spells at Edgeley Park, and was a key player in their National League North title-winning season this year.
The new signing said, “It's class, and I'm looking forward to the new challenge The club have a good plan in place and I want to be part of that, and push on.”
“After being there for so long it was a difficult decision for me to make, but for the future it was in my best interest, and in going full-time it will help me push on.”
