He cannot be under ur sponsorship only you can be under his. If your salary is more than Qar.7,700/- then u might call him on VISIT VISA for 6 months maximum[to be confirmed, not sure]
.
If ur husband's company is not QATAR based, then I think there will be no problem as he may apply for job and if he gets one just go back to his current country, give resign there and come to qatar with new visa & new contract [if the company offereing him a job commits to him]

T20 WC09