dear its same happened with my freind, his visa cancelled by the employer and appointed by new employer as per understanding..could you beleive he passed 2 years ban period with his job on business visa provided by company even ..employer was arranging his family visa as well during all 2 yaers ban perios now he got RP after 2 years ban and he is enjoying his life ..its totally depends on employer if he wants to support or on understanding basis...its illegal but it can be achieved.

Its clear for u..on business ...tourist visa arranged by your Dubai employer can be 100% possible to come in Qatar in ban period.