How long did the wall of Jericho stand?

In the Old Testament book of Joshua, chapter 6 verses 1-5 describe the Lord's instructions to the children of Israel to bring down the wall. Verses 6-20 describe the the battle and how the wall feel down flat on the seventh day. Jericho is apparently the oldest city in the world dating at least to 9250 BC. with the world's earliest wall by 8000 BC. From about 1400 to possibly 1300 BC. Jericho was a small settlement. The town at Joshua's time was small and may have used some of it's earlier walls for defenses. More critical scholars underline conflict between archaeological data and biblical quest narrative. More conservative scholars have tried to re-date the archaeological evidence or deny that tell es Sultan is biblical Jericho.