The 29-year-old was sent off during his side's 27-12 win against the Catalan Dragons on Monday.
Bailey was dismissed by referee Ben Thaler for a 48th-minute late shot on Thomas Bosc, having already been put on report for another late hit.
The latter offence was ranked as a Grade C one when Bailey was charged on Tuesday, and an early guilty plea on Wednesday morning saw him given a two-match ban.
Two more matches have since been tagged on for the Grade B Bosc incident, meaning the six-time Grand Final winner will miss games with Warrington, London and Hull KR, as well as a Challenge Cup fourth-round match.
Bailey, who has missed four of Leeds' nine games this season due to injury, will next be available for the West Yorkshire derby with Bradford on May 3.
Also entering an early guilty plea was Huddersfield prop Eorl Crabtree, who will miss his first game of the season on Saturday after accepting a one-match ban.
The England prop, who has appeared in all of the Giants' 10 Super League matches so far in 2012, was charged with a grade B dangerous throw in his side's Good Friday defeat, 21-20, at Salford.
Castleford's Justin Carney was also given a second two-match ban of the season. The former Sydney Roosters winger, who has scored four tries this campaign, was found guilty of a dangerous throw on St Helens' Paul Wellens on Monday.
Hull KR stand-off Travis Burns will also sit out two matches - his first suspension in the English game - after being found guilty of a late hit in his side's Good Friday win over Hull FC. Burns, who missed the first four games of the season owing to a 12-game ban carried over from his time in Australia, will miss meetings with St Helens and Huddersfield.
- Sports & Recreation
- Thomas Bosc
- Catalan Dragons