If a person travels every day for work(leave morning them come home at night), or perhaps he does this for some period of time but not always, then can he combine his prayers at his destination?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad, sallallaahu 'alayhi wa sallam, is His slave and Messenger.

If the distance between his home and his workplace to which he travels is a distance that allows a person to avail of the concessions of travel, then he takes the ruling of a traveler. In this case, it becomes permissible for him to shorten and combine the prayers during the travel and in his workplace until he returns from his travel.

For more benefit on the ruling on shortening and combining the prayers, please refer to Fataawa 362857, 83821, 90615, 90113, 88402, and 350368.

Allah knows best.