Allen Iverson -- Ex Wants Him Tossed Jail Over Unpaid Child Support

Allen Iverson has a date this week with the judge who earlier this year called him a horrible parent ... and seeing as his ex claims he owes $40,000 in child support ... this new hearing will probably go as poorly for Iverson as the last one.

As TMZ first reported, when Iverson's divorce was finalized back in February, the judge in the case tore Iverson's parenting skills a new one ... saying, "He does not know how to manage the children" and he "has been a hindrance to their spiritual and emotional growth and development."

Now TMZ has learned Iverson's ex, Tawanna, has filed docs with the court saying that Iverson has failed to honor the child support agreement that was handed down back in January. The order stated that Iverson was to pay $8,000/month in support for their 5 kids ... but Tawanna claims Iverson has missed every payment he was supposed to make.

The two are set to be in court this week, where Tawanna wants the judge to order Iverson to fork over the $40,000 he owes in support and even suggest the judge lock Iverson up for his actions.