The 20-year-old, who has made 29 appearances for the Canaries, penned a new two-year contract at Carrow Road last week.
Murphy will now link up with Karl Robinson's side until the end of the 2015-16 campaign.
Championship outfit Dons have already brought in three new faces on loan this summer - Diego Poyet, Sam Gallagher and Robert Hall.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Leeds UnitedLeeds | 29 | 17 | 9 | 3 | 53 | 19 | 34 | 60 |
| 2 | Sheffield UnitedSheff Utd | 29 | 18 | 6 | 5 | 40 | 21 | 19 | 58 |
| 3 | Burnley | 29 | 15 | 12 | 2 | 36 | 9 | 27 | 57 |
| 4 | Sunderland | 29 | 15 | 10 | 4 | 42 | 24 | 18 | 55 |
| 5 | West Bromwich AlbionWest Brom | 29 | 10 | 14 | 5 | 38 | 25 | 13 | 44 |
| 6 | Middlesbrough | 29 | 12 | 8 | 9 | 47 | 36 | 11 | 44 |
| 7 | Blackburn RoversBlackburn | 29 | 12 | 6 | 11 | 32 | 28 | 4 | 42 |
| 8 | Bristol City | 29 | 10 | 11 | 8 | 37 | 34 | 3 | 41 |
| 9 | Watford | 29 | 12 | 5 | 12 | 40 | 41 | -1 | 41 |
| 10 | Sheffield WednesdaySheff Weds | 29 | 11 | 8 | 10 | 42 | 45 | -3 | 41 |
| 11 | Norwich CityNorwich | 29 | 10 | 9 | 10 | 48 | 42 | 6 | 39 |
| 12 | Coventry CityCoventry | 29 | 10 | 8 | 11 | 39 | 38 | 1 | 38 |
| 13 | Queens Park RangersQPR | 29 | 9 | 11 | 9 | 32 | 37 | -5 | 38 |
| 14 | Millwall | 29 | 9 | 10 | 10 | 28 | 26 | 2 | 37 |
| 15 | Preston North EndPreston | 29 | 8 | 13 | 8 | 32 | 36 | -4 | 37 |
| 16 | Oxford UnitedOxford Utd | 29 | 9 | 9 | 11 | 33 | 43 | -10 | 36 |
| 17 | Swansea CitySwansea | 29 | 9 | 7 | 13 | 32 | 40 | -8 | 34 |
| 18 | Cardiff CityCardiff | 29 | 7 | 10 | 12 | 33 | 44 | -11 | 31 |
| 19 | Hull City | 29 | 7 | 8 | 14 | 30 | 38 | -8 | 29 |
| 20 | Stoke CityStoke | 29 | 6 | 11 | 12 | 26 | 36 | -10 | 29 |
| 21 | Portsmouth | 29 | 7 | 8 | 14 | 36 | 52 | -16 | 29 |
| 22 | Derby CountyDerby | 29 | 7 | 6 | 16 | 32 | 40 | -8 | 27 |
| 23 | Luton TownLuton | 29 | 7 | 5 | 17 | 29 | 48 | -19 | 26 |
| 24 | Plymouth ArgylePlymouth | 29 | 4 | 10 | 15 | 27 | 62 | -35 | 22 |
| > Championship Full Table | |||||||||
