Wordpress URL和站点URL为subdir / ~new /但实际上是在public_html中?

I am finishing someone else's work on a Wordpress installation and this makes me confused - in wp_options WP URL and Site URL are both http://example.com/~new/. With http://example.com/ you'll just get the message that Apache is functioning normally. But in FTP the WP installation is in fact in public_html and if I get a path to root (echo getcwd();) with a script located in subdir adminer in the directory that has the WP installation I do get the structure without /~new/

/home/site/domains/apps/public_html/adminer

What is this? A phony directory?

(The trouble is I obviously need to show the landing page (currently only with /~new/) on the domain)