Australian bowlers set up a four-wicket victory over Sri Lanka to spoil veteran batsman Tillakaratne Dilshan's farewell and sweep the two-match Twenty20 series in Colombo on Friday.

The visitors, who won the first match after scoring a world record 263, rode on opener Glenn Maxwell's 29-ball 66 to chase down their 129-run target with 13 balls to spare.

Earlier Aussie bowlers James Faulkner and Adam Zampa claimed three wickets each to restrict the hosts to 128 for nine despite Dhananjaya de Silva's fighting half-century.

Dilshan scored just one off three balls in his final international game but took two wickets to add drama to Australia's chase.

"He [Dilshan] was my first one-day and Test captain, lucky to captain him in his last game. Thank you Dilshan. My team and I wish you all the best for the future," Sri Lankan skipper Dinesh Chandimal said

Maxwell, fresh from his unbeaten 145 off 65 deliveries on Tuesday, once again turned the spotlight on himself, equalling an Australian record for the fastest T20 fifty in 18 balls before being bowled by leg-spinner Seekkuge Prasanna that put an end to a 93-run opening stand with skipper David Warner.

Australia then slipped from 93 for no loss to 120 for six courtesy of a double-wicket over from Sachith Parithana and Dilshan's two wickets in two overs. Travis Head hit the winning runs to help Australia finish the tour on a high after being whitewashed in the Tests.

SCORES IN BRIEF

SRI LANKA: 128 for 9 in 20 overs (Perera 22, De Silva 62; Hastings 2-23, Faulkner 3-19, Zampa 3-16)

AUSTRALIA: 130 for 6 in 17.5 overs (Maxwell 66, Warner 25; Dilshan 2-8, Pathirana 2-23)

Result: Australia won by 6 wickets

Player-of-the-match: Glenn Maxwell