The 21-year-old made a big impact during his 21-match spell with the Lions in the first half of the campaign, scoring two goals.
And he now returned to Nethermoor for the rest of the 2016-17 season as Adam Lockwood's side seek to rubber-stamp their National League safety.
Purver is out of contract at Elland Road in the summer, having signed a one-year deal last summer.
Purver could make his 'second' debut in Saturday's home encounter with Dover.
Guiseley are also hoping to bring in another new face ahead of today's 5pm Conference transfer deadline.