Alright (or all right) in your sentence is used just to add emphasis:
###Adverb
2 used to emphasize how certain one is about something.
- "‘Are you sure it's him?’ ‘It's him all right.’"
Usage
###Usage
There is no logical reason for insisting that all right should be written as two words rather than as alright, when other single-word forms such as altogether have long been accepted. Nevertheless, alright is still regarded as being unacceptable in formal writing