A sealing and inflating assembly comprising: an air compressor including a cylinder housing and a motor coupled to said cylinder housing for generating a pressurized air, said cylinder housing including an outlet tube extended outwardly therefrom and communicating with said cylinder housing for receiving the pressurized air from said cylinder housing, and including an outlet port provided on said outlet tube, a tire repairing container including a compartment formed therein for receiving a sealing preparation, and including a mouth opening formed therein, an outlet piece attached and secured to said mouth opening of said tire repairing container, and including an entrance for coupling to said outlet port of said outlet tube, and including an inlet conduit formed therein and communicative with said entrance thereof for guiding the pressurized air to flow through said outlet piece and then into said compartment of said tire repairing container, and including an outlet conduit formed therein and communicative with said compartment of said tire repairing container and offset from said entrance of said outlet piece for allowing the sealing preparation in said compartment of said tire repairing container to selectively flow out through said outlet conduit of said outlet piece, a pipe disposed in said compartment of said tire repairing container, and including a first end coupled to said inlet conduit of said outlet piece, and including a bore formed therein and communicative with said inlet conduit of said outlet piece for directing and guiding the pressurized air to flow through said bore of said pipe and to flow into said compartment of said tire repairing container, and including a second end having an air perforation formed therein and communicative with said bore of said pipe, and a first check valve device attached onto said second end of said pipe for controlling the pressurized air to selectively flow into said compartment of said tire repairing container, and for preventing the sealing preparation from flowing into said bore of said pipe, characterized in that said outlet piece includes a second check valve device disposed between said pipe and said outlet conduit of said outlet piece for controlling the sealing preparation to selectively flow out through said outlet conduit of said outlet piece, said outlet piece includes a peripheral fence extended therefrom for forming a peripheral chamber between said peripheral fence and said pipe, and said second check valve device includes a stop member slidably received and engaged in said peripheral chamber of said outlet piece for selectively blocking and enclosing said peripheral chamber of said outlet piece and for preventing the sealing preparation from flowing out through said outlet conduit of said outlet piece. an air compressor including a cylinder housing and a motor coupled to said cylinder housing for generating a pressurized air, said cylinder housing including an outlet tube extended outwardly therefrom and communicating with said cylinder housing for receiving the pressurized air from said cylinder housing, and including an outlet port provided on said outlet tube, a tire repairing container including a compartment formed therein for receiving a sealing preparation, and including a mouth opening formed therein, an outlet piece attached and secured to said mouth opening of said tire repairing container, and including an entrance for coupling to said outlet port of said outlet tube, and including an inlet conduit formed therein and communicative with said entrance thereof for guiding the pressurized air to flow through said outlet piece and then into said compartment of said tire repairing container, and including an outlet conduit formed therein and communicative with said compartment of said tire repairing container and offset from said entrance of said outlet piece for allowing the sealing preparation in said compartment of said tire repairing container to selectively flow out through said outlet conduit of said outlet piece, a pipe disposed in said compartment of said tire repairing container, and including a first end coupled to said inlet conduit of said outlet piece, and including a bore formed therein and communicative with said inlet conduit of said outlet piece for directing and guiding the pressurized air to flow through said bore of said pipe and to flow into said compartment of said tire repairing container, and including a second end having an air perforation formed therein and communicative with said bore of said pipe, and a first check valve device attached onto said second end of said pipe for controlling the pressurized air to selectively flow into said compartment of said tire repairing container, and for preventing the sealing preparation from flowing into said bore of said pipe, characterized in that said outlet piece includes a second check valve device disposed between said pipe and said outlet conduit of said outlet piece for controlling the sealing preparation to selectively flow out through said outlet conduit of said outlet piece, said outlet piece includes a peripheral fence extended therefrom for forming a peripheral chamber between said peripheral fence and said pipe, and said second check valve device includes a stop member slidably received and engaged in said peripheral chamber of said outlet piece for selectively blocking and enclosing said peripheral chamber of said outlet piece and for preventing the sealing preparation from flowing out through said outlet conduit of said outlet piece.